Gépészet | Géprajz » Synchronous Belt Drives

SYNCHRONOUS Belt Drives Section : 4 Section 4: Synchronous Belt Drives Offering high power transmission combined with accurate positioning in a compact drive envelope, Fenner synchronous drives continue to push out performance boundaries utilising the latest materials and production technology. Comprehensive range of belt styles including Classical Timing Belts, HTD belts and Torque Drive PLUS 3 (TDP3) Absolute drive synchronism - no slippage Torque Drive PLUS 3 (TDP3) anti-static as standard to ISO 9563 (1990) ISO compliance Stock sizes to suit all applications Synchronous Belt Drives: Design Data Required Synchronous Belt Drives Type of prime mover, or driving machine TDP3 Belts 89 Electric motor starting arrangement TDP3 Drive Design 90 Rotational speed of prime mover HTD Drives 93 Power rating of prime mover HTD Drive Design 94 Type of driven machine Centre Distances TDP3 & HTD 96 Page Rotational speed of driven machine TDP3 & HTD Pulleys 104

Power absorbed by driven machine Classic Timing Belts & Drives 107 Hours/day duty & start/stop frequency Classic Timing Pulley Dimensions 108 Installation Instructions, All Drives 110 Both driven & driver machine shaft diameters Centre distance & space restraints: > fixed centres? Any environmental issues: > ambient temperature > noise limits > water, oil mist, solvents etc. Visit www.fptgroupcom for the Drive Design Assistant Fenner Advanced Technology Fenner TorqueChain Drive Plus® 3 Energy Efficient Drive Package Comparison 14MXP - 55mm Torque drive PLUS 3 belts allow the design of lighter, more compact, more cost effective drive packages. 14M HTD - 115mm 64 teeth 72 teeth Drive condition: Driver is a 45kW motor, 1460rev/min at 16hrs per day. Driven machine is rotary gear pump 730rev/min ±5%. Torque Drive PLUS 3 Premium synchronous belt The Compact, Quiet, Powerful Solution 40 teeth 36 teeth 32 teeth 23kg XH - 178mm 42kg

20 teeth 64kg > Delivers the highest power rating from a rubber/glass fibre construction > Compact drive pacakages > Offers minimum backlash for precise positioning > Operates with minimum noise levels > Runs optimally on standard HTD pulleys The Mark of Engineering Excellence www.fptgroupcom 88 synchronous belt drives Section : 4 Fenner Torque Drive Plus® 3 Belts Torque Drive PLUS 3 Belts A Helically wound glass-fibre tensile member gives high tensile modulus and excellent fatigue life. B Flexible, durable chloroprene backing polymer, encapsulates the tensile cords and protects them from contaminants and mechanical damage e.g from idler pulleys on the back of the belt. 1000 800 A 600 500 400 300 m 200 8m TD 60 50 40 30 14 m m 20 10 8m 8 m TD D m P3 80 TD P3 Low friction woven nylon facing protects tooth surfaces from wear and aids quiet, efficient running. 14 m 100 C H D COMPARISON OF HTD, TORQUE DRIVE PLUS3 DRIVE POWER RATINGS

Belt teeth are precisely formed and accurately spaced to ensure quiet, efficient engagement with pulley grooves. They are made of medium hardness chloroprene and are bonded integrally with the belt backing. Power – kW C B H TD 6 5 4 5m m 3 H TD 2 Pitch Length The three principal dimensions of a belt are: pitch pitch length width and are used in this order as a designation e.g 8MXP-1120-30. Belt pitch is the distance in millimetres between two adjacent tooth centres as measured on the pitch line of the belt. Belt pitch length is the total length of the belt (circumference) in millimetres as measured along the pitch line. The theoretical pitch line of a belt lies within the tensile member. TEMPERATURE Torque Drive Plus 3 belt performance is generally unaffected in ambient temperatures between –25OC and +100OC. Temperatures beyond these extremes should be referred to your local Authorised Distributor. ANTI-STATIC AS STANDARD Fenner Torque Drive PLUS 3 belts are

static conductive to the definitive ISO 9563 (1990) as standard. FEN01/14 : Drive Design & Maintenance Manual mm 480 560 600 640 720 800 880 960 1040 1120 1200 1280 1440 1600 1760 1800 2000 2400 2600 2800 20mm WIDE Cat. Code 286J0048 286J0056 286J0060 286J0064 286J0072 286J0080 286J0088 286J0096 286J0104 286J0112 286J0120 286J0128 286J0144 286J0160 286J0176 286J0180 286J0200 286J0240 286J0260 286J0280 30mm WIDE Cat. Code 286K0048 286K0056 286K0060 286K0064 286K0072 286K0080 286K0088 286K0096 286K0104 286K0112 286K0120 286K0128 286K0144 286K0160 286K0176 286K0180 286K0200 286K0240 286K0260 286K0280 50mm WIDE Cat. Code 286L0048 286L0056 286L0060 286L0064 286L0072 286L0080 286L0088 286L0096 286L0104 286L0112 286L0120 286L0128 286L0144 286L0160 286L0176 286L0180 286L0200 286L0240 286L0260 286L0280 10,000 3,000 4,000 5,000 6,000 8,000 2,000 1,000 300 400 500 600 800 200 100 30 40 50 60 80 Small Pulley/Faster Shaft Speed – rev/min 8mm PITCH (8MXP) Belts Torque Drive PLUS

3 Belts 20 10 1 85mm WIDE Cat. Code 286M0048 286M0056 286M0060 286M0064 286M0072 286M0080 286M0088 286M0096 286M0104 286M0112 286M0120 286M0128 286M0144 286M0160 286M0176 286M0180 286M0200 286M0240 286M0260 286M0280 14mm PITCH (8MXP) Belts Pitch Length mm 966 1190 1400 1610 1778 1890 2100 2310 2450 2590 2800 3150 3500 3850 4326 4578 40mm WIDE Cat. Code 286N0096 286N0119 286N0140 286N0161 286N0177 286N0189 286N0210 286N0231 286N0245 286N0259 286N0280 286N0315 286N0350 286N0385 286N0432 286N0457 55mm WIDE Cat. Code 286P0096 286P0119 286P0140 286P0161 286P0177 286P0189 286P0210 286P0231 286P0245 286P0259 286P0280 286P0315 286P0350 286P0385 286P0432 286P0457 85mm WIDE Cat. Code 286R0096 286R0119 286R0140 286R0161 286R0177 286R0189 286R0210 286R0231 286R0245 286R0259 286R0280 286R0315 286R0350 286R0385 286R0432 286R0457 115mm WIDE Cat. Code 286S0096 286S0119 286S0140 286S0161 286S0177 286S0189 286S0210 286S0231 286S0245 286S0259 286S0280 286S0315 286S0350 286S0385 286S0432 286S0457

170mm WIDE Cat. Code 286T0096 286T0119 286T0140 286T0161 286T0177 286T0189 286T0210 286T0231 286T0245 286T0259 286T0280 286T0315 286T0350 286T0385 286T0432 286T0457 89 Section : 4 Synchronous BELT drives Fenner Torque Drive Plus® 3 Drive Design Fenner Torque Drive PLUS 3 Drive Design TDP3 DRIVE SELECTION PROCEDURE EXAMPLE 1) Determine Drive Requirements 1) Drive Requirements a) b) c) d) The nature of the driving machine (usually the prime mover) and the driven machine and the duty cycle in hrs./day The rotational speeds of the driving and driven machines. The power capability and starting arrangements of the prime mover and the power absorbed by the driven machines. The required drive centre distance and the machine shaft diameters. a) AC cage rotor electric motor driving to a rotary gear pump. 24 hr/day. b) 1450 rev/min motor, pump to run at 740rev/min +/–5%. c) 60 kW motor, soft start – no pump absorbed power given. d) Centres 800/850mm, motor shaft 60mm, pump

shaft 75mm. 2) Design Power 2) Calculate Design Power Service factor for medium duty, soft start, 24 hr/day = 1.7 Select a service factor from the table – page 92. Include an additional factor if the drive is speed increasing. Design power = 1.7 x 60 = 102 kW Multiply normal running (absorbed) power by the service factor to give design power – kW. 3) Belt Pitch Use the belt pitch selection guide - page 91 to select 8mm or 14mm pitch according to the point of intersection of the small pulley (faster shaft) rotational speed and the design power. 3) Belt Pitch Pitch selection chart shows intersection of 1450 rev/min and 102 kW to be within the capability of 14mm pitch. 4) Speed Ratio 1450/740 = 1.97:1 A 2:1 ratio satisfies the +/–5% criterion. If the intersection lies close to the 8/14mm pitch boundary, either pitch may be appropriate, attempt the design procedure on 8mm pitch first but be aware that later criteria may make 14mm necessary. 5) Pulley Selection 4) Speed

Ratio 6) Belt Length & Centre Distance Divide the rotational speed of the faster shaft (rev/min) by that of the slower shaft to determine speed ratio. A belt length of 2310mm gives centres of 816mm. 5) Pulley Selection The power rating table shows a value of 46.74 kW for a 32 groove pulley at 1450 rev/min for a 40mm wide belt. Refer to the drive tables (pages 96-103) for the appropriate belt pitch. From the first column select the required speed ratio and consult the next two columns for appropriate pulley groove numbers. Where alternative groove number pairs are available be aware that criteria in steps 6 & 7 may influence the ultimate selection. Consider any drive dimensional limitations by reference to pulley dimension tables on pages 104-106, noting that pulleys with up to 72 grooves may have flanges that determine the o/dia. 6) Belt Length & Centre Distance Read along the line in the drive table for the selected pulley groove number pair and select the centre

distance closest to that required. The standard belt length giving that centre distance is at the head of the column. If centre distance is critical, be aware that alternative groove number pairs may offer a closer value with standard belt lengths. From page 102, 32 to 64 grooves is one combination giving 2:1 ratio. 7) Power Rating & Belt Width Belt length factor for a 2310mm belt = 1.0 - no change to power ratings 102/46.74 = 218 Next larger standard width factor = 231 for 85mm wide belt 8) Shaft Sizes The 32-14M-85 pulley uses a 2517 Taper Lock bush, max. bore 60mm – OK The 64-14M-85 pulley uses a 3525 Taper Lock bush, max. bore 100mm – OK DRIVE SPECIFICATION Motor pulley: 32-14M-85 HTD pulley. Taper Lock bush: 2517/60mm. Driven pulley: 64-14M-85 HTD pulley. Taper Lock bush: 3525/75mm. Belt: 14MXP - 2310-85 Torque Drive PLUS 3 belt. 7) Power Rating & Belt Width Refer to the power rating table on page 91 for the chosen belt pitch, locate the small pulley

groove number/rotational speed combination, and note the power rating (for the narrowest standard belt width). Multiply this rating by the belt length factor for the chosen belt length, from the listing beneath the main table. Divide the design power by the length corrected power rating, to give required belt width factor. Refer to the width factors below the rating table and select the belt width with a factor equal to or greater than required. 8) Shaft Sizes Check the bore capacity of the chosen pulleys against the pulley dimension tables on pages 104-106. 90 DRIVE ORDERING INSTRUCTIONS A complete drive usually consists of five components: Two pulleys, two Taper Lock bushes and one belt. 1. Pulleys Standard HTD pulleys Codes are shown on the dimension tables, pages 104-106. 2. Taper Lock bushes Bush sizes are shown on the pulley dimension tables Bush codes are on Shaft Fixings pages 129-130. 3. Belts Belt codes are shown on page 105-106 The drive selection above would be ordered

as: If the pulleys will not accomodate the drive shafts it will be necessary to consider other pulley combinations, possibly using an alternative belt pitch. Driving pulley 32-14M-85 Code 043R0032 Taper Lock bush 2517/60mm Code 029M0060 NOTE Driven pulley 64-14M-85  Code 043R0064 An optimum drive will use a belt of width factor just greater than that required. If alternative groove number pairs can give close to the required speed ratio, slightly larger pulley groove numbers may allow a narrower belt, or slightly smaller groove numbers may be possible with the same belt width. Larger diameter pulleys typically reduce bearing and shaft loads. Avoid drives where the belt width exceeds the small pulley diameter. Taper Lock bush 3525/75mm Code 029J0075 Belt 14MXP-2310-85  Code 286R0231 synchronous belt drives Section : 4 Fenner Torque Drive Plus® 3 Drive Design Torque Drive PLUS 3 Drive Design BELT PITCH SELECTION GUIDE 1000 800 600 500 400 300 w id th

s 200 0m m 100 384 - 600 640 - 880 960 - 1200 1280 - 1760 1800 - 4400 0.8 0.9 1.0 1.1 1.2 Length factor 17 14 m m & 5 P3 8m m TD P32 10 8 6 5 4 3 BELT WIDTH FACTORS 22 24 26 28 30 32 100 200 300 400 500 600 720 800 960 1000 1200 1450 1600 1800 2000 2500 2850 3000 3500 4000 4500 5000 5500 6000 0.43 0.83 1.23 1.61 1.99 2.37 2.82 3.10 3.65 3.82 4.52 5.38 5.57 6.54 7.18 8.74 9.79 10.23 11.65 13.00 14.28 15.50 16.65 17.74 0.50 0.97 1.43 1.88 2.32 2.75 3.27 3.60 4.23 4.42 5.23 6.21 6.43 7.55 8.29 10.07 11.26 11.76 13.36 14.88 16.31 17.66 18.93 20.12 0.57 1.11 1.64 2.15 2.65 3.14 3.73 4.11 4.83 5.05 5.97 7.08 7.33 8.59 9.43 11.43 12.76 13.32 15.10 16.78 18.36 19.83 21.21 22.49 0.65 1.26 1.85 2.43 3.00 3.55 4.22 4.64 5.45 5.70 6.73 7.98 8.25 9.66 10.59 12.82 14.29 14.91 16.87 18.70 20.41 22.00 23.47 24.82 0.73 1.41 2.07 2.72 3.35 3.97 4.71 5.19 6.08 6.36 7.50 8.89 9.18 10.75 11.77 14.22 15.83 16.50 18.63 20.61 22.44 24.13 25.68 27.08 0.81 1.57 2.30 3.01

3.71 4.40 5.21 5.74 6.72 7.03 8.29 9.81 10.12 11.84 12.96 15.62 17.37 18.09 20.38 22.49 24.44 26.21 27.81 29.26 Number of grooves 34 36 38 0.89 1.72 2.53 3.31 4.08 4.83 5.73 6.29 7.37 7.71 9.08 10.73 11.07 12.94 14.15 17.01 18.89 19.66 22.10 24.34 26.37 28.21 29.86 31.31 0.97 1.88 2.76 3.61 4.44 5.26 6.23 6.85 8.01 8.38 9.86 11.64 12.00 14.02 15.32 18.39 20.38 21.20 23.78 26.12 28.23 30.12 31.79 33.24 1.06 2.04 2.99 3.91 4.81 5.69 6.74 7.40 8.65 9.05 10.64 12.55 12.93 15.09 16.47 19.73 21.83 22.70 25.40 27.83 30.00 31.92 33.58 35.00 10,000 Small Pulley/Faster Shaft Speed – rev/min Rev/min of small pulley 3,000 4,000 5,000 6,000 8,000 POWER RATINGS (KW) FOR 20MM WIDE 8MXP BELT 2,000 1 1,000 85 4.76 300 400 500 600 800 50 2.73 200 30 1.58 100 20 1.00 10 Width factor 30 40 50 60 80 Belt width mm 2 20 Belt length mm 30 20 TD BELT LENGTH CORRECTION FACTORS (Multipler) 60 50 40 11 Design Power – kW 80 40 44 48 56 64 72 1.14 2.19 3.21 4.20 5.17 6.11

7.24 7.95 9.28 9.71 11.40 13.43 13.83 16.13 17.59 21.02 23.24 24.14 26.94 29.45 31.66 33.59 35.23 36.60 1.30 2.50 3.66 4.78 5.87 6.93 8.20 8.99 10.50 10.97 12.86 15.12 15.55 18.10 19.71 23.46 25.84 26.80 29.77 32.37 34.61 36.49 38.02 39.21 1.45 2.79 4.07 5.31 6.52 7.69 9.09 9.96 11.62 12.13 14.20 16.66 17.12 19.89 21.62 25.60 28.11 29.12 32.18 34.79 36.98 38.73 40.06 40.98 1.71 3.27 4.76 6.21 7.60 8.96 10.57 11.56 13.44 14.02 16.36 19.11 19.58 22.67 24.56 28.82 31.42 32.44 35.46 37.88 39.71 40.98 41.68 41.82 1.88 3.59 5.22 6.78 8.29 9.76 11.49 12.54 14.54 15.16 17.63 20.51 20.95 24.17 26.08 30.30 32.79 33.74 36.43 38.39 39.63 40.16 40.00 39.16 1.94 3.71 5.37 6.97 8.51 9.99 11.74 12.79 14.80 15.41 17.85 20.67 21.07 24.21 26.02 29.91 32.10 32.91 35.06 36.37 36.86 36.55 35.44 33.56 POWER RATINGS (KW) FOR 40MM WIDE 14MXP BELT Rev/min of small pulley 28 29 30 32 34 10 20 50 100 200 300 400 500 600 720 800 960 1000 1200 1450 1600 1800 2000 2200 2500 2850 3000 3500 4000 0.44 0.85

1.99 3.77 7.09 10.19 13.13 15.93 18.61 21.78 23.65 27.20 28.30 32.59 37.49 40.20 43.54 46.59 49.35 52.95 56.46 57.70 60.83 62.41 0.47 0.90 2.12 4.03 7.58 10.91 14.06 17.06 19.93 23.34 25.33 29.20 30.30 34.88 40.10 42.97 46.50 49.71 52.61 56.35 59.94 61.20 64.23 65.54 0.50 0.96 2.24 4.27 8.04 11.57 14.92 18.11 21.16 24.77 26.88 30.90 32.14 36.97 42.46 45.47 49.72 52.51 55.51 59.33 62.96 64.20 67.06 68.03 0.55 1.06 2.48 4.73 8.91 12.82 16.52 20.05 23.42 27.40 29.73 34.20 35.50 40.78 46.74 49.98 53.93 57.46 60.59 64.49 68.05 69.21 71.55 71.64 0.60 1.15 2.71 5.16 9.72 14.00 18.04 21.88 25.54 29.87 32.38 37.20 38.60 44.28 50.62 54.04 58.18 61.84 65.02 68.89 72.25 73.26 74.87 73.86 Number of grooves 36 38 0.65 1.24 2.92 5.58 10.52 15.13 19.50 23.64 27.58 32.22 34.90 40.00 41.55 47.57 54.24 57.81 62.08 65.80 68.99 72.72 75.77 76.58 77.27 74.94 Length factor 966-1190 0.80 1400-1610 1778-1890 2100-2450 2590-3360 3500-6860 0.90 0.95 FEN01/14 : Drive Design & Maintenance Manual 40

44 48 56 64 0.74 1.42 3.35 6.40 12.06 17.34 22.31 27.02 31.48 36.72 39.71 45.33 47.11 53.71 60.90 64.66 69.07 72.78 75.81 79.04 81.12 81.37 79.68 74.12 0.88 1.69 3.98 7.60 14.30 20.55 26.40 31.89 37.06 43.13 46.51 52.90 54.64 62.11 69.77 73.62 77.83 81.29 83.74 85.59 85.46 84.54 77.95 66.07 0.92 1.78 4.20 8.00 15.06 21.61 27.73 33.48 38.87 45.20 48.69 55.30 57.29 64.73 72.47 76.30 80.50 83.66 85.81 87.06 85.99 84.58 76.02 1.10 2.13 5.03 9.59 18.02 25.78 32.98 39.68 45.91 53.17 57.04 64.30 66.51 74.38 82.07 85.57 88.95 90.90 91.44 89.47 83.65 79.82 1.29 2.48 5.87 11.18 20.95 29.88 38.10 45.67 52.63 60.71 64.84 72.60 74.85 82.77 89.83 92.58 94.56 94.63 92.82 86.40 BELT WIDTH FACTORS BELT LENGTH CORRECTION FACTORS (Multipler) Belt length mm 0.69 1.33 3.14 5.99 11.29 16.25 20.92 25.34 29.55 34.50 37.34 42.70 44.38 50.70 57.65 61.34 65.69 69.43 72.57 76.09 78.71 79.26 78.85 75.01 1.00 1.05 1.10 Belt width mm Width factor 40 55 85 115 170 1.00 1.44 2.31 3.18 4.78 91

Section : 4 Synchronous BELT drives Fenner Torque Drive Plus® 3 and HTD Drives Fenner Torque Drive PLUS 3 and HTD Drives SERVICE FACTORS - for selecting both Torque Drive PLUS 3 and HTD drives. TYPES OF PRIME MOVER SPECIAL CASES For speed increasing drives of: 1.00 - 124 - no additional factor 1.25 - 174 - add 01 1.75 - 249 - add 02 2.50 - 349 - add 03 3.50 and greater - add 04 Seasonal / intermittent use - subtract 0.2 Idler pulley used on drive - add 0.2 Soft Starts Heavy Starts DC electric motors DC electric motors AC electric motors AC electric motors – series wound – DOL start – shunt wound – star / delta start – compound – single phase – stepper motors – synchronous – servo motors – slip ring – split wound – inverter control I/C engines with < 4 cylinders I/C engines with 4 or more cylinders. Prime movers with centrifugal clutches or fluid couplings. Hours per Day Duty TYPE OF DRIVEN MACHINE 10 and under Over 10 to 16 Hours Per

Day Duty Over 16 10 and under Over 10 to 16 Over 16 LIGHT DUTY Agitators (uniform density), Bakery machinery: Dough mixers, Blowers except positive displacement. Centrifugal pumps and compressors Belt conveyors, (uniformly loaded). Exhausters. Fans up to 75 kW Paper machinery: Agitators, calenders, dryers, Printing machinery: Linotype machines, cutters, folders. Screens: Drum, conical. Woodworking machinery: Lathes, band saws 1.2 1.4 1.6 1.6 1.8 2.0 MEDIUM DUTY Agitators and Mixers (variable density), Belt conveyors (not uniformly loaded), Brick and clay machinery, augers, mixers, granulators. Fans over 7.5 kW Generators, Line shafts Laundry machinery Punches, presses, shears. Printing machinery: Presses, newspaper, rotary embossing, flat bed magazine. Pumps: Positive displacement, rotary Screens, vibrating Machine tools. 1.3 1.5 1.7 1.7 1.9 2.1 HEAVY DUTY Blowers, positive displacement. Bucket elevators Centrifuges Conveyors: Drag, pan, screw. Paper machinery:

Beaters, jordans, mash pumps, pulpers. Pumps, piston Pulverizers Woodworking machinery Textile machinery. Exiters 1.5 1.7 1.9 1.9 2.1 2.3 EXTRA HEAVY DUTY Brick machinery, pug mills. Compressors, piston Crushers: Gyratory, jaw roll. Hoists Mills: Ball, rod, tube, rubber Rubber machinery: Calenders, extruders, mills. 1.7 1.9 2.1 2.1 2.3 2.5 BELT DIMENSIONS 5M HTD 8MXP & 8M HTD 14MXP & 14M HTD PULLEYS The three principal dimensions of a pulley are: number of grooves pitch width and are used in this order as a designation e.g 72-8M-50 (flange diameter will be greater) On the pulley, pitch is the distance between groove centres and is measured on the pulley pitch circle. The pitch circle of the pulley coincides with the pitch line of the belt running in it. The pulley pitch diameter is always greater than its outer diameter. Torque Drive PLUS 3 belts run with standard Fenner Taper Lock HTD pulleys. Standard pulley dimensions are listed in the tables on pages

104-106. 92 synchronous belt drives Section : 4 HTD Drives HTD Drives FENNER HTD BELT PITCH SELECTION CHART This development of the original Timing Drive is offered in a range of pitches 5mm, 8mm and 14mm. Comprehensive choice of belt widths and lengths combine with an optimised range of Taper Lock pulleys to suit general industrial needs. 200 100 Drives can be designed by simple catalogue selection methods to give more compact drives, less noise and lower bearing loads than with classical Timing Drives. Fenner HTD belts have a curvlinear tooth form giving a more uniform distribution of shear stresses within the teeth and a transition of tooth loads to the tensile members in the belt which significantly improves upon classical Timing Belts. 5MM (5M) PITCH HTD BELTS Catalogue Code 15mm WIDE 9mm WIDE Pitch Length mm 5 11 10 Design Power (kW) Fenner HTD drives offer the technical and economical benefits of an established product range with proven performance and world

wide availability. m wi 0m 20 The Fenner HTD drive system conforms to the ISO 13050 standard hs dt 80 60 50 40 30 17 & m m 14 TD m H TD 8 6 5 4 3 8m H 2 m 1 TD 0.8 0.6 0.5 0.4 0.3 5m H 0.2 0.1 305 278E0030 278F0030 325 278E0032 278F0032 350 278E0035 278F0035 400 278E0040 278F0040 450 278E0045 278F0045 500 278E0050 278F0050 575 278E0057 278F0057 640 278E0064 278F0064 700 278E0070 278F0070 800 278E0080 278F0080 890 278E0089 278F0089 TEMPERATURE 980 278E0098 278F0098 1100 278E0110 278F0110 HTD belt performance is generally unaffected in ambient temperatures between –25OC and +100OC. 1200 278E0120 278F0120 1420 278E0142 278F0142 1595 278E0159 278F0159 1800 278E0180 278F0180 2000 278E0200 278F0200 2250 278E0225 278F0225 2525 278E0252 278F0252 8MM (8M) PITCH HTD BELTS 0.08 0.06 0.05 0.04 0.03 0.02 Rev/Min of Faster Shaft 10,000 3,000 4,000 5,000 6,000 8,000 2,000 1,000 300 400 500 600 800

200 100 30 40 50 60 80 20 10 0.01 Temperatures beyond these extremes should be referred to your local Authorised Distrbutor. For storage, belts should be protected from moisture, temperature extremes, direct sunlight and high ozone concentrations. Belts should be stored avoiding sharp bends or crimping, which would damage the belts. 14MM (14M) PITCH HTD BELTS Catalogue Code 30mm WIDE 50mm WIDE Pitch Length mm 40mm WIDE Pitch Length mm 20mm WIDE 480 278J0048 278K0048 278L0048 278M0048 966 600 278J0060 278K0060 278L0060 278M0060 640 278J0064 278K0064 278L0064 720 278J0072 278K0072 800 278J0080 880 85mm WIDE Catalogue Code 55mm WIDE 85mm WIDE 115mm WIDE 170mm WIDE 278N0096 278P0096 278R0096 278S0096 278T0096 1190 278N0119 278P0119 278R0119 278S0119 278T0119 278M0064 1400 278N0140 278P0140 278R0140 278S0140 278T0140 278L0072 278M0072 1610 278N0161 278P0161 278R0161 278S0161 278T0161 278K0080 278L0080 278M0080 1778 278N0177

278P0177 278R0177 278S0177 278T0177 278J0088 278K0088 278L0088 278M0088 1890 278N0189 278P0189 278R0189 278S0189 278T0189 960 278J0096 278K0096 278L0096 278M0096 2100 278N0210 278P0210 278R0210 278S0210 278T0210 1040 278J0104 278K0104 278L0104 278M0104 2310 278N0231 278P0231 278R0231 278S0231 278T0231 1120 278J0112 278K0112 278L0112 278M0112 2450 278N0245 278P0245 278R0245 278S0245 278T0245 1200 278J0120 278K0120 278L0120 278M0120 2590 278N0259 278P0259 278R0259 278S0259 278T0259 1280 278J0128 278K0128 278L0128 278M0128 2800 278N0280 278P0280 278R0280 278S0280 278T0280 1440 278J0144 278K0144 278L0144 278M0144 3150 278N0315 278P0315 278R0315 278S0315 278T0315 1600 278J0160 278K0160 278L0160 278M0160 3500 278N0350 278P0350 278R0350 278S0350 278T0350 1760 278J0176 278K0176 278L0176 278M0176 3850 278N0385 278P0385 278R0385 278S0385 278T0385 1800 278J0180 278K0180 278L0180 278M0180

4326 278N0432 278P0432 278R0432 278S0432 278T0432 2000 278J0200 278K0200 278L0200 278M0200 4578 278N0457 278P0457 278R0457 278S0457 278T0457 2400 278J0240 278K0240 278L0240 278M0240 2600 278J0260 278K0260 278L0260 278M0260 2800 278J0280 278K0280 278L0280 278M0280 FEN01/14 : Drive Design & Maintenance Manual 93 Section : 4 Synchronous BELT drives HTD Drives HTD Drive Design HTD SELECTION PROCEDURE (a) Speed Ratio Divide the rev/min of the faster shaft by the rev/min of the slower shaft to obtain the speed ratio. (b) Service Factor From the table (page 92) select the service factor which is applicable to the drive. If the drive is speed increasing an additional factor may be required. (c) Design Power Multiply the normal running power (kW) by the service factor. This gives the design power which is used as the basis for selecting the drive. EXAMPLE An HTD drive is required to drive a rotary pump at 685 rev/min. The prime mover is a 30kW,

direct-on-line start AC motor, running at 1440 rev/min. The required centre distance is 450mm, and each shaft diameter is 55mm. Continuous duty (a) Speed Ratio 1440 = 2.10:1 685 (b) Service Factor From table (page 92) the service factor is 1.9 (c) Design Power Design Power = 30 x 1.9 = 57kW (d) Belt Pitch (d) Belt Pitch Refer to the belt pitch selection chart on page 93. Choose the recommended belt pitch according to the point of intersection of the design power and the rev/min of the faster shaft. From table on page 93, 14M is the most suitable pitch. (e) Pulley Selection Refer to the drive tables (pages 96 to 103) for the pitch of belt selected in (d). From the first column select the required speed ratio. Reading along the same horizontal line the next two columns give the number of grooves on each pulley. Where more than one combination of pulleys is available consult the power ratings tables (page 95) and the list of stock belt widths (page93). In conjunction with the design

power found in (c) determine the most suitable pulley pair. (f) Centre Distance (e) Pulley Selection A speed ratio of 2.11 can be found in the drive tables on page 102 utilising pulleys of 38 and 80 grooves. (f) Centre Distance Reading along the same line as the 2.11:1 Speed ratio, a centre distance of 467mm is found, and at the head of the column the belt length given is 1778mm. (g) Belt Length Correction Factor From table on page 95 Belt Length Correction Factor = 0.95 Using the relevant drive table read along the same horizontal line as that showing the pulley sizes, and select a centre distance nearest to that which is required. The belt required to give this centre distance is shown at the head of the column. (h) Power Rating From the power rating table the basic capacity of a 38 groove pulley at 1440 rev/ min is 25,70kW/40mm width. Actual power rating = 2570 x 095 = 2441 kW (g) Belt Length Correction Factor (j) Belt width Belt Width Factor = From the table on page 95

note the correction factor for the pitch and length of belt chosen. (h) Power Rating 57 = 2.33 24.41 From the width factor table beneath the power rating table it can be seen that the required width is 85mm. Refer to the Power Ratings on page 95 for the pitch of belt being considered. Read down the left hand column to the speed of the small pulley in rev/min. On this line read across to the column headed by the number of grooves on the small pulley and note the basic power rating. Multiply this figure by the belt length correction factor (g) to obtain the actual power rating. (k) Pulley Bores From the pulley dimension tables, both pulleys are fitted with Taper Lock® Bushes which will accommodate 55mm bores. (j) Belt Width The 38 groove pulley is flanged as standard. Divide the Design Power found in step (c) by the actual power rating found in step (h) to obtain the belt width factor. Using the table below the power ratings, select a belt width which has a width factor equal to

or greater than the figure found above. (k) Pulley Bores Refer to the pulley dimensions (pages 98 to 100) and check that the Taper Lock® Bush sizes in the pulleys selected can accommodate the shafts they are to fit. (l) Pulley Flanges DRIVE SPECIFICATION 38 –14M –85mm 3020/55mm 80 – 14M – 85mm 3525/55mm 1778 –14M –85mm HTD belt giving 467mm centres. (l) Pulley Ranges ORDERING INSTRUCTIONS If standard pulleys are to be used, (i.e those combinations shown in the selection tables) on the majority of drives it will be found that at least one pulley is flanged as standard. If non-standard pulleys are to be used (ie combinations not shown in the selection tables) one pulley requires to be flanged, and it is usually more economical to flange the smaller one. If the centre distance exceeds 8 times the outside diameter of the small pulley, or if shafts are vertical, both pulleys should be flanged. A complete drive usually consists of five components: two pulleys, two Taper

Lock bushes, and one belt. (1) Pulleys. The eight digit pulley code is given on the dimension pages 96-103. (2) Taper Lock Bushes. The eight digit codes are given on the Taper Lock Shaft Fixings pages 129-130 (3) Belt. The belt code is given on page 93 Example: The drive selection above would be ordered as : Driving Pulley 38–14M–85mm Taper Lock Bush 3020/55mm Driven Pulley 80–14M–85mm Taper Lock Bush 3525/55mm Belt 1778–14M–85mm 94 Code 043R0038 Code 029P0055 Code 043R0080 Code 029J0055 Code 278R0177 synchronous belt drives Section : 4 HTD Drive Design HTD Drive Design POWER RATINGS (KW) FOR 15MM WIDE 5M BELT Number of grooves Rev/min of small pulley 28 32 34 36 38 40 44 48 56 64 72 80 20 40 60 100 200 300 400 500 600 720 800 960 1000 1200 1440 1600 2000 2400 2880 4000 5000 6000 8000 10000 0.02 0.04 0.06 0.09 0.21 0.26 0.34 0.40 0.45 0.51 0.57 0.64 0.66 0.76 0.87 0.95 1.12 1.27 1.44 1.81 2.10 2.36 2.76 2.99 0.02 0.06 0.08 0.11 0.25 0.32 0.40

0.47 0.55 0.62 0.66 0.76 0.79 0.89 1.02 1.12 1.30 1.47 1.70 2.12 2.44 2.70 3.10 3.23 0.02 0.06 0.08 0.13 0.26 0.36 0.43 0.51 0.59 0.66 0.72 0.79 0.87 0.96 1.12 1.19 1.40 1.59 1.83 2.27 2.59 2.87 3.25 3.31 0.04 0.06 0.09 0.13 0.28 0.38 0.47 0.55 0.62 0.72 0.77 0.83 0.91 1.04 1.19 1.29 1.49 1.70 1.97 2.40 2.76 3.04 3.38 3.40 0.04 0.06 0.09 0.15 0.30 0.42 0.51 0.59 0.68 0.77 0.83 0.89 0.98 1.12 1.27 1.36 1.61 1.83 2.08 2.55 2.91 3.19 3.52 3.44 0.04 0.08 0.09 0.17 0.32 0.43 0.55 0.64 0.72 0.81 0.89 0.95 1.04 1.19 1.36 1.46 1.70 1.97 2.19 2.70 3.08 3.36 3.65 3.48 0.04 0.08 0.11 0.19 0.38 0.51 0.62 0.72 0.81 0.95 1.00 1.15 1.19 1.34 1.53 1.64 1.91 2.17 2.44 3.01 3.38 3.67 3.84 3.44 0.04 0.09 0.13 0.21 0.43 0.57 0.70 0.81 0.93 1.06 1.13 1.29 1.32 1.49 1.70 1.83 2.14 2.40 2.70 3.31 3.69 3.93 3.97 3.27 0.06 0.09 0.15 0.25 0.51 0.68 0.83 0.96 1.10 1.25 1.34 1.53 1.57 1.78 2.00 2.11 2.51 2.84 3.16 3.80 4.18 4.35 3.97 0.06 0.11 0.17 0.28 0.59 0.77 0.95 1.10 1.25 1.42 1.53 1.74 1.80 2.02

2.29 2.46 2.85 3.21 3.57 4.23 4.54 4.55 3.55 0.06 0.13 0.19 0.32 0.64 0.87 1.06 1.25 1.42 1.61 1.72 1.95 2.00 2.27 2.57 2.76 3.19 3.57 4.01 4.61 4.80 4.59 0.08 0.15 0.23 0.36 0.72 0.96 1.17 1.38 1.57 1.78 1.91 2.15 2.23 2.46 2.84 3.06 3.52 3.93 4.33 4.91 4.95 4.46 BELT LENGTH CORRECTION FACTORS (Mutliplier) Belt length mm Length factor BELT WIDTH FACTORS 305-400 450-500 575-800 890-1200 1270-2250 0.8 0.9 1.0 1.1 1.2 Belt width mm Width factor 9 15 0.53 1.00 POWER RATINGS (KW) FOR 20MM WIDE 8M BELT Rev/min of small pulley 10 20 50 100 200 300 400 500 600 720 800 960 1000 1200 1440 1600 2000 2500 2880 3500 4000 22 24 26 28 30 32 34 0.02 0.03 0.08 0.16 0.33 0.49 0.65 0.81 0.98 0.02 0.04 0.09 0.19 0.37 0.53 0.71 0.89 1.07 1.28 1.42 0.02 0.04 0.11 0.22 0.45 0.65 0.84 1.02 1.21 1.42 1.56 0.03 0.05 0.13 0.27 0.53 0.77 0.99 1.21 1.43 1.69 1.85 2.18 2.26 2.65 0.03 0.06 0.16 0.31 0.62 0.90 1.16 1.42 1.68 1.98 2.17 2.55 2.64 3.11 3.65 0.04 0.07 0.18 0.36 0.72 1.04

1.34 1.64 1.94 2.28 2.50 2.94 3.05 3.59 4.21 4.61 5.59 0.04 0.08 0.21 0.41 0.82 1.19 1.54 1.88 2.21 2.61 2.86 3.36 3.49 4.09 4.80 5.26 6.37 7.69 8.63 BELT LENGTH CORRECTION FACTORS (Mutliplier) Belt length mm Length factor Number of grooves 36 38 0.05 0.09 0.23 0.47 0.93 1.34 1.74 2.13 2.51 2.94 3.24 3.81 3.95 4.63 5.43 5.95 7.21 8.69 9.76 11.36 0.05 0.11 0.27 0.54 1.05 1.51 1.96 2.40 2.82 3.32 3.64 4.28 4.44 5.21 6.12 6.70 8.11 9.77 10.98 12.75 40 44 48 56 64 72 80 0.06 0.11 0.28 0.56 1.13 1.64 2.12 2.59 3.05 3.59 3.94 4.62 4.80 5.63 6.60 7.23 8.74 10.52 11.82 13.70 15.08 0.06 0.12 0.31 0.62 1.24 1.78 2.31 2.82 3.22 3.90 4.28 5.03 5.22 6.12 7.16 7.84 9.47 11.36 12.73 14.68 16.09 0.07 0.14 0.34 0.68 1.34 1.93 2.50 3.05 3.59 4.22 4.63 5.43 5.63 6.60 7.72 8.44 10.17 12.17 13.59 15.60 16.99 0.08 0.16 0.40 0.79 1.54 2.21 2.87 3.50 4.11 4.83 5.30 6.21 6.44 7.53 8.79 9.61 11.53 13.70 15.18 17.20 18.47 0.09 0.18 0.45 0.90 1.73 2.50 3.23 3.94 4.63 5.43 5.95 6.97 7.23 8.44 9.83

10.72 12.80 15.08 16.58 18.47 0.10 0.20 0.51 1.02 1.93 2.77 3.59 4.37 5.13 6.02 6.60 7.72 7.99 9.32 10.82 11.79 13.99 16.32 17.76 0.11 0.23 0.56 1.13 2.12 3.05 3.94 4.80 5.64 6.60 7.23 8.44 8.74 10.17 11.79 12.80 15.08 17.40 18.69 BELT WIDTH FACTORS 480-600 640-880 960-1200 1280-1760 1800-2800 0.8 0.9 1.0 1.1 1.2 Belt width mm Width factor 20 30 50 85 1.00 1.58 2.73 4.29 POWER RATINGS (KW) FOR 40MM WIDE 14M BELT Rev/min of small pulley 10 20 40 60 100 200 300 400 500 600 720 800 960 1000 1200 1440 1600 2000 2500 2880 28 29 30 32 34 0.20 0.40 0.70 1.10 1.80 3.60 4.90 6.10 7.20 8.20 9.30 10.00 11.30 11.60 13.10 0.20 0.40 0.80 1.20 1.90 3.90 5.30 6.60 7.80 8.90 10.10 10.80 12.20 12.50 14.10 15.70 0.20 0.40 0.80 1.30 2.10 4.20 5.70 7.10 8.40 9.50 10.80 11.60 13.10 13.50 15.10 16.80 17.80 0.20 0.50 1.00 1.50 2.40 4.80 6.60 8.20 9.60 11.00 12.50 13.40 15.00 15.40 17.30 19.20 20.30 22.50 0.30 0.60 1.10 1.70 2.80 5.50 7.50 9.30 11.00 12.50 14.10 15.10 17.00

17.50 19.50 21.60 22.80 25.20 26.90 BELT LENGTH CORRECTION FACTORS (Mutliplier) Belt length mm Length factor 966-1190 0.8 0.95 1.0 38 40 44 48 56 0.30 0.60 1.20 1.90 3.10 6.20 8.50 10.50 12.30 14.00 15.80 17.00 19.10 19.60 21.80 24.10 25.40 28.00 29.70 29.80 0.30 0.70 1.40 2.00 3.40 6.80 9.20 11.30 13.30 15.10 17.00 18.30 20.50 21.00 23.40 25.70 27.10 29.60 31.20 31.20 0.40 0.70 1.40 2.20 3.60 7.20 9.70 12.00 14.10 15.90 18.00 19.30 21.60 22.10 24.50 26.90 28.30 30.80 32.00 31.80 0.40 0.80 1.60 2.40 4.00 8.00 10.80 13.30 15.60 17.60 18.80 21.20 23.70 24.30 26.80 29.30 30.60 32.80 33.40 32.00 0.40 0.90 1.80 2.70 4.40 8.90 12.00 14.70 17.20 19.40 21.80 23.20 25.80 26.50 29.10 31.60 32.90 34.70 34.40 31.90 0.50 1.10 2.10 3.20 5.20 10.50 14.20 17.40 20.20 22.70 25.40 27.00 29.80 30.50 33.20 35.50 36.60 37.30 34.40 BELT WIDTH FACTORS 1400-1610 1778-1890 2100-2450 2590-3150 3500-4578 0.9 Number of grooves 36 1.05 1.1 Belt width mm Width factor 40 55 85 115 170 1.00

1.50 2.50 3.47 5.28 Note: The above table covers pulley sizes up to 56 grooves. Combinations are possible with larger sizes giving higher power ratings Consult your local Authorised Distributor FEN01/14 : Drive Design & Maintenance Manual 95 Section : 4 Synchronous BELT drives HTD 5M Drives HTD 5M Drive Centre Distance in millimetres Speed Ratio Number of grooves on Driving Pulley Driven Pulley Belt pitch in millmetres 305 325 350 375 400 425 450 475 500 575 600 640 700 800 890 980 1100 1200 1420 65 teeth 93 70 teeth 105 75 teeth 118 80 teeth 130 85 teeth 143 90 teeth 155 95 teeth 168 100 teeth 180 115 teeth 218 120 teeth 230 128 teeth 250 140 teeth 280 160 teeth 330 178 teeth 375 196 teeth 420 220 teeth 480 240 teeth 530 284 teeth 640 83 78 – – – – – – – – – – – 75 80 – – – – – 77 – – 87 – – – – 75 – 85 – – – – – – 82 – – – – 80 – – – – – 77 – – –

– – – – – – – – – – – – 95 90 85 80 – – – – – – – – 82 87 92 – – 80 – 85 90 – – 100 – – – 82 87 – 97 – 85 – – – – 95 – – – – 92 79 – – – – 89 – – – – – – – 84 – – – – – – – 108 103 98 93 88 78 – – – – – 90 95 100 105 – 82 92 – 97 103 – – 113 – 85 – 95 100 77 110 87 97 – – 80 – 107 – 90 82 – 105 92 – – – 84 102 – – – 87 – – – 97 – – – – – – – 120 115 110 105 100 90 – – – – – 102 107 112 117 – 95 105 – 110 115 – – 125 – 97 – 107 112 90 122 100 110 – – 92 – 120 – 102 95 – 117 105 – – – 97 115 – – – 99 – – – 109 – – – – – – – 133 128 123 118 113 103 93 – – – – 115 120 125 130 98 108 118 – 123 128 – – 135 – 110 – 120 125 102 135 112 122 – – 105 87 132 – 115 107 – 130 117 92 – – 109 127 – – 94 112 – 96 – 122 –

– – 98 – – – 145 140 135 130 125 115 105 – – – – 127 132 137 142 110 120 130 – 135 140 – – 150 – 122 – 132 137 115 147 125 135 – – 117 100 145 – 127 120 – 142 130 104 – – 122 140 – – 107 124 – 109 – 134 – – – 111 – – – 158 153 148 143 138 128 118 98 – – – 140 145 150 155 123 133 143 – 148 153 – – 163 – 135 107 145 150 127 160 137 147 – – 130 112 157 – 140 132 97 155 142 117 – – 135 152 – 101 119 137 – 122 – 147 106 – – 124 – 108 – 170 165 160 155 150 140 130 110 – – – 152 157 162 167 135 145 155 – 160 165 – – 175 – 147 120 157 162 140 172 150 160 – – 142 125 170 – 152 145 109 167 155 129 – – 147 165 – 114 132 149 – 134 – 159 118 – – 136 – 121 – 208 203 198 193 188 178 168 148 128 – – 190 195 200 205 172 182 192 – 197 202 – – 212 137 185 157 195 200 177 210 187 197 – – 180 162 207 127 190 182 147 205 192 167 – – 185 202 – 152 169

187 136 172 – 197 156 – 141 174 125 159 – 220 215 210 205 200 190 180 160 140 120 – 203 208 213 218 185 195 205 – 210 215 130 – 225 150 197 170 207 212 190 222 200 210 119 – 192 175 220 139 202 195 160 217 205 180 – – 197 215 129 164 182 200 149 184 – 210 169 – 153 187 138 171 – 240 235 230 225 220 210 200 180 160 140 – 222 227 232 237 205 215 225 – 230 235 150 – 245 170 217 190 227 232 210 242 220 230 139 – 212 195 240 159 222 215 180 237 225 200 – – 217 235 149 194 202 220 169 204 – 230 189 135 174 207 158 191 – 270 265 260 255 250 240 230 210 190 170 150 252 257 262 267 235 245 255 160 260 265 180 – 275 200 247 220 257 262 240 272 250 260 170 147 242 225 270 190 252 245 210 267 255 230 – 156 247 265 179 214 232 250 199 234 – 260 219 165 204 237 198 222 – 320 315 310 305 300 290 280 260 240 220 200 302 307 312 317 285 295 305 210 310 315 230 187 325 250 297 270 307 312 290 322 300 310 220 197 292 275 320 240 302 295 260 317 305 280

– 206 297 315 229 265 282 300 249 283 167 310 269 216 254 297 239 272 – 365 360 355 350 345 335 325 305 285 265 245 347 352 357 362 330 340 350 255 355 360 275 232 370 295 342 315 352 357 335 367 345 355 265 242 337 320 465 285 347 340 305 362 350 325 203 252 342 360 274 310 327 345 294 330 213 355 314 261 299 332 284 317 – 410 405 400 395 390 380 370 350 330 310 290 392 397 402 407 375 385 395 300 400 405 320 277 415 340 387 360 397 402 380 412 390 400 310 287 382 365 410 330 392 385 350 407 395 370 249 297 387 405 319 355 372 390 339 375 238 400 359 306 344 377 329 362 215 470 465 460 455 450 440 430 410 390 370 350 452 457 462 467 435 445 455 360 460 465 380 337 475 400 447 420 457 462 440 472 450 460 370 347 442 425 470 390 452 445 410 467 455 430 309 357 447 465 380 415 432 450 400 435 319 460 420 367 404 437 389 422 276 520 515 510 505 500 490 480 460 440 420 400 502 507 512 517 485 495 505 410 510 515 430 387 525 450 497 470 507 512 490 522 500 510 420 397 492 475 520

440 502 495 460 517 505 480 359 407 497 515 430 465 482 500 450 485 369 510 470 417 454 487 439 472 327 630 625 620 615 610 600 590 570 550 530 510 612 617 622 627 595 605 615 520 620 625 540 497 635 560 607 580 617 622 600 632 610 620 530 507 602 585 630 550 612 605 570 627 615 590 469 517 607 625 540 575 592 610 560 595 475 620 580 527 565 597 549 582 438 1.00 28 28 61 teeth 83 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.05 1.06 1.06 1.06 1.09 1.10 1.11 1.11 1.12 1.13 1.13 1.13 1.14 1.14 1.16 1.17 1.18 1.19 1.20 1.21 1.22 1.25 1.25 1.25 1.26 1.27 1.29 1.29 1.29 1.33 1.33 1.36 1.38 1.40 1.40 1.41 1.41 1.43 1.43 1.45 1.47 1.50 1.50 1.56 1.56 1.57 1.60 1.61 1.64 1.65 1.67 1.68 1.70 32 34 36 38 40 44 48 56 64 72 80 38 36 34 32 44 40 36 72 34 32 64 80 28 56 38 48 34 32 40 28 36 32 64 72 38 44 28 56 34 36 48 28 32 40 80 64 34 28 56 44 38 32 48 36 72 28 40 56 44 34 48 38 80 32 34 36 38 40 44 48 56 64 72 80 40 38 36 34 48 44 40 80 38 36 72 90 32 64 44 56 40 38 48 34 44

40 80 90 48 56 36 72 44 48 64 38 44 56 112 90 48 40 80 64 56 48 72 56 112 44 64 90 72 56 80 64 136 73 – – – – – – – – – – – – – 70 – – – – – – – – 77 – – – – – – 75 – – – – – – 72 – – – – 70 – – – – – – – – – – – – – – – – – – – – – All centre distances are rounded values – Consult your local Authorised Distributor if centre distance is fixed. 96 Speed Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.05 1.06 1.06 1.06 1.09 1.10 1.11 1.11 1.12 1.13 1.13 1.13 1.14 1.14 1.16 1.17 1.18 1.19 1.20 1.21 1.22 1.25 1.25 1.25 1.26 1.29 1.29 1.29 1.29 1.33 1.33 1.36 1.38 1.40 1.40 1.41 1.41 1.43 1.43 1.45 1.47 1.50 1.50 1.56 1.56 1.57 1.60 1.61 1.64 1.65 1.67 1.68 1.70 synchronous belt drives Section : 4 HTD 5M Drives HTD 5M DRIVES Centre Distance in millimetres Speed Ratio 1.71 1.75 1.75 1.78 1.80 1.82 1.88 1.88 1.89 1.89 2.00 2.00 2.00 2.00 2.00

2.05 2.11 2.12 2.13 2.22 2.25 2.25 2.29 2.33 2.35 2.37 2.43 2.50 2.50 2.55 2.57 2.65 2.80 2.81 2.83 2.86 2.95 3.09 3.11 3.21 3.29 3.40 3.50 3.58 3.78 4.00 4.00 4.25 4.86 Number of grooves on Driving Pulley Driven Pulley 28 32 64 36 40 44 48 34 72 38 28 32 36 40 56 44 38 34 64 36 32 40 28 48 34 38 56 32 36 44 28 34 40 32 48 28 38 44 36 28 34 40 32 38 36 28 34 32 28 48 56 112 64 72 80 90 64 136 72 56 64 72 80 112 90 80 72 136 80 72 90 64 112 80 90 136 80 90 112 72 90 112 90 136 80 112 136 112 90 112 136 112 136 136 112 136 136 136 Belt pitch in millmetres 305 325 350 375 400 425 450 475 500 575 600 640 700 800 890 980 1100 1200 1420 61 teeth – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 65 teeth – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

– – – – – – – – – – – – – – – – – – – 70 teeth 78 – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 75 teeth 91 75 – – – – – – – – 79 – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 80 teeth 104 88 – – – – – – – – 92 – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 85 teeth 116 101 – 85 – – – – – – 105 89 – – – – – – – – – – 93 – – – – – – – – – – – – – – – – – – – – – – – – – – 90 teeth 129 113 – 97 – – – 100 – – 118 102 – – – – – – – – – – 106 – –

– – – – – – – – – – – – – – – – – – – – – – – – 95 teeth 142 126 – 110 94 – – 113 – – 131 115 98 – – – – – – – 103 – 119 – – – – – – – 107 – – – – 93 – – – – – – – – – – – – – 100 teeth 154 139 – 123 107 – – 125 – 109 143 127 111 – – – – 113 – – 116 – 132 – – – – – – – 120 – – – – 107 – – – – – – – – – – – – – 115 teeth 192 176 – 161 145 129 – 163 – 148 181 166 150 134 – – 136 152 – 138 154 – 170 – 140 120 – 142 122 – 159 125 – 127 – 147 – – – 131 – – – – – – – – – 120 teeth 204 189 – 174 158 142 123 176 – 160 194 178 163 147 – 127 149 165 – 151 167 132 183 – 153 134 – 155 136 – 171 137 – 140 – 160 – – – 144 – – – – – – – – – 128 teeth 224 209 – 194 178 162 144 196 – 180 214 198 183 167 – 148 169

185 – 171 187 152 203 – 174 154 – 176 157 – 192 159 – 161 – 180 – – – 165 – – – – – 127 – – – 140 teeth 255 239 – 224 208 193 174 226 – 211 244 229 213 197 – 179 200 215 – 202 218 183 233 – 204 185 – 206 188 145 222 190 149 192 – 211 151 – 153 196 155 – 157 – – 161 – – – 160 teeth 305 289 176 274 259 243 225 276 – 261 294 279 263 248 185 230 250 266 – 253 268 234 284 193 255 236 – 257 239 198 273 241 202 243 – 262 204 – 206 248 208 162 210 164 166 215 168 170 174 178 teeth 350 334 222 319 304 289 270 322 – 306 339 324 309 293 231 275 296 311 186 298 313 280 329 240 300 282 195 303 284 244 318 287 248 289 203 307 251 207 253 293 255 211 257 213 215 261 217 219 223 196 teeth 395 380 267 364 349 334 316 367 224 351 384 369 354 339 276 320 341 356 233 343 359 325 374 285 346 327 242 348 330 290 363 332 294 334 250 353 297 254 299 339 301 259 303 261 263 308 265 267 271 220 teeth 455 440 328 424 409 394 376 427

285 412 444 429 414 399 337 381 401 416 294 403 419 385 434 346 406 388 303 408 390 351 424 392 355 395 312 413 358 317 360 399 362 321 364 323 325 369 327 330 334 240 teeth 505 490 378 474 459 444 426 477 336 462 494 479 464 449 387 431 451 467 345 454 469 436 484 397 456 438 354 458 440 401 474 443 406 445 363 463 408 368 411 450 413 372 415 374 377 420 379 381 385 284 teeth 615 600 489 585 569 554 536 587 447 572 605 589 574 559 498 541 562 577 456 564 579 546 594 507 566 548 466 569 551 512 584 553 517 556 475 574 519 479 521 560 524 484 526 486 489 531 491 493 498 Speed Ratio 1.71 1.75 1.75 1.78 1.80 1.82 1.88 1.88 1.89 1.89 2.00 2.00 2.00 2.00 2.00 2.05 2.11 2.12 2.13 2.22 2.25 2.25 2.29 2.33 2.35 2.37 2.43 2.50 2.50 2.55 2.57 2.65 2.80 2.81 2.83 2.86 2.95 3.09 3.11 3.21 3.29 3.40 3.50 3.58 3.78 4.00 4.00 4.25 4.86 All centre distances are rounded values – Consult your local Authorised Distributor if centre distance is fixed. FEN01/14 : Drive Design & Maintenance

Manual 97 Section : 4 Synchronous BELT drives Fenner Torque Drive Plus®3 8MXP & HTD 8M Drives Fenner Torque Drive PLUS 3 8MXP & HTD 8M Drives Centre Distance in millimetres Speed Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.05 1.06 1.06 1.06 1.07 1.07 1.08 1.08 1.09 1.10 1.11 1.11 1.12 1.13 1.13 1.13 1.13 1.14 1.14 1.15 1.16 1.17 1.17 1.18 1.19 1.20 1.20 1.21 1.22 1.23 1.25 1.25 1.25 1.25 1.26 1.27 1.27 1.29 1.29 1.29 1.31 1.33 1.33 1.33 1.33 1.36 1.38 1.38 1.40 1.40 Number of grooves on Driving Pulley Driven Pulley 24 26 28 30 32 34 36 38 40 44 48 56 64 72 80 38 36 34 32 30 28 26 24 44 40 36 72 34 32 64 80 30 28 56 26 38 24 48 34 32 30 40 28 36 26 24 32 64 72 38 30 44 28 56 34 26 24 30 36 48 28 32 26 40 80 24 26 28 30 32 34 36 38 40 44 48 56 64 72 80 40 38 36 34 32 30 28 26 48 44 40 80 38 36 72 90 34 32 64 30 44 28 56 40 38 36 48 34 44 32 30 40 80 90 48 38 56 36 72 44 34 32 40 48 64 38 44 36 56 112 Belt pitch in millmetres

480 560 600 640 720 800 880 960 1040 1120 1200 1280 1440 1600 1760 1800 2000 2400 2600 2800 60 teeth 144 136 128 120 112 104 – – – – – – – – – – – – 108 116 124 132 140 – – – – – 104 – – 112 120 – 128 – 136 – – – 108 – 116 – 124 132 – – – – 103 – 112 – – 120 128 – – – 107 – 115 – – 70 teeth 184 176 168 160 152 144 136 128 120 – – – – – – 124 132 140 148 156 164 172 180 – – 128 – 136 144 – – 152 160 – 168 – 176 – 132 140 148 – 156 120 164 172 136 – – – 144 – 152 – 123 160 168 139 – – 147 127 155 – – 75 teeth 204 196 188 180 172 164 156 148 140 – – – – – – 144 152 160 168 176 184 192 200 – 132 148 – 156 164 – – 172 180 – 188 136 196 – 152 160 168 – 176 140 184 192 156 – – 127 164 – 172 – 143 180 188 159 131 – 168 147 176 – – 80 teeth 224 216 208 200 192 184 176 168 160 144 – – – – – 164 172

180 188 196 204 212 220 136 152 168 – 176 184 – – 192 200 – 208 156 216 – 172 180 188 144 196 160 204 212 176 – – 147 184 – 192 – 164 200 208 180 151 – 188 167 196 – – 90 teeth 264 256 248 240 232 224 216 208 200 184 168 – – – – 204 212 220 228 236 244 252 260 176 192 208 – 216 224 – – 232 240 – 248 196 256 152 212 220 228 184 236 200 244 252 216 – – 188 224 159 232 – 204 240 248 220 191 – 228 207 236 167 – 100 teeth 304 296 288 280 272 264 256 248 240 224 208 176 – – – 244 252 260 268 276 284 292 300 216 232 248 – 256 264 – – 272 280 – 288 236 296 192 252 260 268 224 276 240 284 292 256 – – 228 264 199 272 – 244 280 288 260 231 175 268 248 276 207 – 110 teeth 344 336 328 320 312 304 296 288 280 264 248 216 184 – – 284 292 300 308 316 324 332 340 256 272 288 – 296 304 – – 312 320 200 328 276 336 232 292 300 308 264 316 280 324 332 296 – – 268 304 240 312 183 284 320 328 300 272 215 308 288 316 247

– 120 teeth 384 376 368 360 352 344 336 328 320 304 288 256 224 – – 324 332 340 348 356 364 372 380 296 312 328 – 336 344 208 – 352 360 240 368 316 376 272 332 340 348 304 356 320 364 372 336 – – 308 344 280 352 223 324 360 368 340 312 255 348 328 356 287 – 130 teeth 424 416 408 400 392 384 376 368 360 344 328 296 264 232 – 364 372 380 388 396 404 412 420 336 352 368 216 376 384 248 – 392 400 280 408 356 416 312 372 380 388 344 396 360 404 412 376 231 – 348 384 320 392 263 364 400 408 380 352 295 388 368 396 327 – 140 teeth 464 456 448 440 432 424 416 408 400 384 368 336 304 272 240 404 412 420 428 436 444 452 460 376 392 408 256 416 424 288 – 432 440 320 448 396 456 352 412 420 428 384 436 400 444 452 416 271 235 388 424 360 432 303 404 440 448 420 392 335 428 408 436 367 – 150 teeth 504 496 488 480 472 464 456 448 440 424 408 376 344 312 280 444 452 460 468 476 484 492 500 416 432 448 296 456 464 328 260 472 480 360 488 436 496 392 452 460 468 424 476

440 484 492 456 311 275 428 464 400 472 343 444 480 488 460 432 375 468 448 476 407 – 160 teeth 544 536 528 520 512 504 496 488 480 464 448 416 384 352 320 484 492 500 508 516 524 532 540 456 472 488 336 496 504 368 300 512 520 400 528 476 536 432 492 500 508 464 516 480 524 532 496 351 315 468 504 440 512 383 484 520 528 500 472 416 508 488 516 448 – 180 teeth 624 616 608 600 592 584 576 568 560 544 528 496 464 432 400 564 572 580 588 596 604 612 620 536 552 568 416 576 584 448 380 592 600 480 608 556 616 512 572 580 588 544 596 560 604 612 576 432 395 548 584 520 592 464 564 600 608 580 552 496 588 568 596 528 334 200 teeth 704 696 688 680 672 664 656 648 640 624 608 576 544 512 480 644 652 660 668 676 684 692 700 616 632 648 496 656 664 528 460 672 680 560 688 636 696 592 652 660 668 624 676 640 684 692 656 512 475 628 664 600 672 544 644 680 688 660 632 576 668 648 676 608 414 220 teeth 784 776 768 760 752 744 736 728 720 704 688 656 624 592 560 724 732 740 748 756 764 772

780 696 712 728 576 736 744 608 540 752 760 640 768 716 776 672 732 740 748 704 756 720 764 772 736 592 556 708 744 680 752 624 724 760 768 740 712 656 748 728 756 688 494 225 teeth 804 796 788 780 772 764 756 748 740 724 708 676 644 612 580 744 752 760 768 776 784 792 800 716 732 748 596 756 764 628 560 772 780 660 788 736 796 692 752 760 768 724 776 740 784 792 756 612 576 728 764 700 772 644 744 780 788 760 732 676 768 748 776 708 514 250 teeth 904 896 888 880 872 864 856 848 840 824 808 776 744 712 680 844 852 860 868 876 884 892 900 816 832 848 696 856 864 728 660 872 880 760 888 836 896 792 852 860 868 824 876 840 884 892 856 712 676 828 864 800 872 744 844 880 888 860 832 776 868 848 876 808 615 300 teeth 1104 1096 1088 1080 1072 1064 1056 1048 1040 1024 1008 976 944 912 880 1044 1052 1060 1068 1076 1084 1092 1100 1016 1032 1048 896 1056 1064 928 860 1072 1080 960 1088 1036 1096 992 1052 1060 1068 1024 1076 1040 1084 1092 1056 912 876 1028 1064 1000 1072 944 1044 1080 1088

1060 1032 976 1068 1048 1076 1008 815 325 teeth 1204 1196 1188 1180 1172 1164 1156 1148 1140 1124 1108 1076 1044 1012 980 1144 1152 1160 1168 1176 1184 1192 1200 1116 1132 1148 996 1156 1164 1028 960 1172 1180 1060 1188 1136 1196 1092 1152 1160 1168 1124 1176 1140 1184 1192 1156 1012 976 1128 1164 1100 1172 1044 1144 1180 1188 1160 1132 1076 1168 1148 1176 1108 915 350 teeth 1304 1296 1288 1280 1272 1264 1256 1248 1240 1224 1208 1176 1144 1112 1080 1244 1252 1260 1268 1276 1284 1292 1300 1216 1232 1248 1096 1256 1264 1128 1060 1272 1280 1160 1288 1236 1296 1192 1252 1260 1268 1224 1276 1240 1284 1292 1256 1112 1076 1228 1264 1200 1272 1144 1244 1280 1288 1260 1232 1176 1268 1248 1276 1208 1015 All centre distances are rounded values – Consult your local Authorised Distributor if centre distance is fixed. 98 Speed Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.05 1.06 1.06 1.06 1.07 1.07 1.08 1.08 1.09 1.10 1.11 1.11 1.12 1.13 1.13 1.13 1.13

1.14 1.14 1.15 1.16 1.17 1.17 1.18 1.19 1.20 1.20 1.21 1.22 1.23 1.25 1.25 1.25 1.25 1.26 1.27 1.27 1.29 1.29 1.29 1.31 1.33 1.33 1.33 1.33 1.36 1.38 1.38 1.40 1.40 synchronous belt drives Section : 4 Fenner Torque Drive Plus®3 MXP & HTD 8M Drives Fenner Torque Drive PLUS 3 8MXP & HTD 8M Drives Centre Distance in millimetres Speed Ratio Number of grooves on Belt pitch in millmetres 480 560 600 640 720 800 880 960 1040 1120 60 70 75 80 90 100 110 120 130 140 teeth teeth teeth teeth teeth teeth teeth teeth teeth teeth 64 90 1.41 – – – – – – – – – 250 34 48 1.41 – – 135 155 195 235 275 315 356 396 24 34 1.42 123 164 184 204 244 284 324 364 404 444 28 40 1.43 103 143 163 183 223 264 304 344 384 424 56 80 1.43 – – – – – – – 206 246 286 44 64 1.45 – – – – – 182 223 263 303 343 26 38 1.46 111 151 171 191 231 272 312 352 392 432 30 44 1.47 – 131 151 171 211 251 291 332 372 412 38 56 1.47 – – – – 170 211 251 291 331 371

24 36 1.50 119 159 179 199 240 280 320 360 400 440 32 48 1.50 – 118 139 159 199 239 279 319 359 399 48 72 1.50 – – – – – – 198 238 278 319 26 40 1.54 107 147 167 187 227 267 307 348 388 428 36 56 1.56 – – – 134 174 214 255 295 335 375 72 112 1.56 – – – – – – – – – – 28 44 1.57 – 134 155 175 215 255 295 335 375 416 24 38 1.58 115 155 175 195 235 275 315 356 396 436 30 48 1.60 – 122 142 162 203 243 283 323 363 403 40 64 1.60 – – – – 149 190 230 270 310 351 56 90 1.61 – – – – – – – – 224 264 44 72 1.64 – – – – – 164 205 245 286 326 34 56 1.65 – – – 137 178 218 258 299 339 379 24 40 1.67 110 151 171 191 231 271 311 351 391 432 48 80 1.67 – – – – – – 179 220 261 301 38 64 1.68 – – – – 152 193 234 274 314 354 26 44 1.69 – 138 158 179 219 259 299 339 379 419 28 48 1.71 – 125 146 166 206 247 287 327 367 407 32 56 1.75 – – – 141 181 222 262 302 343 383 64 112 1.75 – – – –

– – – – – – 36 64 1.78 – – – – 156 197 237 278 318 358 40 72 1.80 – – – – – 171 212 253 293 334 80 144 1.80 – – – – – – – – – – 44 80 1.82 – – – – – – 186 227 268 309 24 44 1.83 – 142 162 182 223 263 303 343 383 423 26 48 1.85 – 129 149 170 210 250 291 331 371 411 30 56 1.87 – – – 144 185 226 266 306 346 387 48 90 1.88 – – – – – – – 197 238 279 34 64 1.88 – – – – 159 200 241 281 322 362 38 72 1.89 – – – – – 175 216 256 297 337 24 48 2.00 – 132 153 173 214 254 294 335 375 415 28 56 2.00 – – 127 148 189 229 270 310 350 390 32 64 2.00 – – – – 163 204 245 285 325 366 36 72 2.00 – – – – – 178 219 260 301 341 40 80 2.00 – – – – – – 193 234 275 316 56 112 2.00 – – – – – – – – – – 72 144 2.00 – – – – – – – – – – 44 90 2.05 – – – – – – – 204 245 286 80 168 2.10 – – – – – – – – – – 38

80 2.11 – – – – – – 197 238 279 320 34 72 2.12 – – – – – 182 223 264 304 345 30 64 2.13 – – – – 166 207 248 289 329 369 26 56 2.15 – – 130 151 192 233 273 314 354 394 36 80 2.22 – – – – – – 200 242 282 323 32 72 2.25 – – – – – 185 226 267 308 348 40 90 2.25 – – – – – – – 210 252 293 64 144 2.25 – – – – – – – – – – 28 64 2.29 – – – – 170 211 252 292 333 373 24 56 2.33 – – 134 155 196 236 277 317 358 398 48 112 2.33 – – – – – – – – – 225 72 168 2.33 – – – – – – – – – – 34 80 2.35 – – – – – 161 204 245 286 327 38 90 2.37 – – – – – – – 214 255 297 30 72 2.40 – – – – 146 188 230 271 311 352 80 192 2.40 – – – – – – – – – – 26 64 2.46 – – – 131 173 215 255 296 337 377 All centre distances are rounded values – Consult your local Authorised Distributor if centre distance is fixed. Driving Pulley

Driven Pulley FEN01/14 : Drive Design & Maintenance Manual 1200 150 teeth 290 436 484 464 327 383 472 452 411 480 440 359 468 415 – 456 476 443 391 305 366 419 472 342 395 459 447 423 240 398 374 – 349 463 451 427 320 402 378 455 431 406 381 356 254 – 327 – 360 385 410 434 364 389 334 – 413 438 268 – 367 338 392 – 417 1280 160 teeth 330 476 524 504 367 423 512 492 451 520 480 399 508 455 267 496 516 483 431 345 406 459 512 382 435 499 487 463 281 439 414 – 389 503 491 467 360 442 418 495 471 446 422 397 295 – 367 – 400 425 450 474 404 429 375 – 454 478 309 – 408 378 433 – 457 1440 180 teeth 411 556 604 584 447 503 592 572 532 600 560 479 588 535 348 576 596 564 511 426 487 539 592 462 515 580 567 543 363 519 494 – 470 583 571 547 441 523 498 575 551 526 502 477 377 – 448 – 481 506 530 555 485 509 456 286 534 559 392 – 488 459 513 – 538 1600 200 teeth 491 636 684 664 527 583 672 652 612 680 640 559 668 615 429 656 676 644 591 506 567 619 672

542 595 660 647 623 444 599 575 342 550 664 651 627 521 603 578 655 631 607 582 558 458 356 529 – 561 586 610 635 565 590 536 370 614 639 473 – 569 540 594 – 618 1760 220 teeth 571 716 764 744 607 664 752 732 692 760 720 639 748 696 509 736 756 724 671 586 647 699 752 623 675 740 728 703 524 679 655 424 630 744 731 707 602 683 659 735 711 687 662 638 539 438 609 367 642 666 691 715 646 670 617 453 694 719 554 380 649 620 674 – 698 1800 225 teeth 591 736 784 764 627 684 772 752 712 780 740 659 768 716 530 756 776 744 691 606 667 719 772 643 695 760 748 723 545 699 675 445 650 764 751 727 622 703 679 755 731 707 682 658 559 459 629 388 662 686 711 735 666 690 637 473 715 739 574 401 669 641 694 – 718 2000 250 teeth 691 836 884 864 727 784 872 852 812 880 840 759 868 816 630 856 876 844 791 707 767 820 872 743 795 860 848 823 645 799 775 546 751 864 852 827 722 803 779 855 831 807 783 758 660 561 730 491 762 787 811 835 766 790 737 575 815 839 675 505 770 741 794 432 819

2400 300 teeth 891 1036 1084 1064 927 984 1072 1052 1012 1080 1040 960 1068 1016 830 1956 1076 1044 992 907 967 1020 1072 943 995 1060 1048 1024 846 999 975 748 951 1064 1052 1027 922 1003 979 1056 1031 1007 983 959 861 762 930 695 963 987 1011 1035 966 991 938 777 1015 1039 876 709 970 942 995 640 1019 2600 325 teeth 991 1136 1184 1164 1028 1084 1172 1152 1112 1180 1140 1060 1168 1116 931 1156 1176 1144 1092 1007 1067 1120 1172 1043 1095 1160 1148 1124 946 1099 1075 848 1051 1164 1152 1128 1023 1103 1079 1156 1131 1107 1083 1059 961 863 1030 796 1063 1087 1111 1135 1067 1091 1038 878 1115 1139 977 811 1070 1042 1095 742 1119 2800 350 teeth 1091 1236 1284 1264 1128 1184 1272 1252 1212 1280 1240 1160 1268 1216 1031 1256 1276 1244 1192 1107 1167 1220 1272 1143 1196 1260 1248 1224 1046 1199 1175 948 1151 1264 1252 1228 1123 1203 1179 1256 1231 1207 1183 1159 1062 964 1130 897 1163 1187 1211 1235 1167 1191 1138 979 1215 1239 1077 912 1171 1142 1195 844 1219 Speed Ratio 1.41 1.41 1.42

1.43 1.43 1.45 1.46 1.47 1.47 1.50 1.50 1.50 1.54 1.56 1.56 1.57 1.58 1.60 1.60 1.61 1.64 1.65 1.67 1.67 1.68 1.69 1.71 1.75 1.75 1.78 1.80 1.80 1.82 1.83 1.85 1.87 1.88 1.88 1.89 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.05 2.10 2.11 2.12 2.13 2.15 2.22 2.25 2.25 2.25 2.29 2.33 2.33 2.33 2.35 2.37 2.40 2.40 2.46 99 Section : 4 Synchronous BELT drives Fenner Torque Drive Plus®3 8MXP & HTD 8M Drives Fenner Torque Drive PLUS 3 8MXP & HTD 8M Drives Centre Distance in millimetres Speed Ratio 2.50 2.50 2.55 2.57 2.57 2.63 2.65 2.67 2.67 2.67 2.77 2.80 2.81 2.86 2.95 3.00 3.00 3.00 3.00 3.00 3.08 3.11 3.21 3.27 3.29 3.33 3.43 3.46 3.50 3.50 3.60 3.73 3.75 3.79 3.82 4.00 4.00 4.00 4.20 4.24 4.31 4.36 4.42 4.50 4.67 4.67 4.80 4.80 4.94 5.05 5.14 5.25 5.33 5.54 5.60 5.65 6.00 6.00 6.00 6.40 6.46 6.86 Number of grooves on Driving Pulley Driven Pulley 32 36 44 28 56 64 34 24 30 72 26 40 32 28 38 24 30 48 56 64 26 36 28 44 34 24 56 26 32 48 40 30 24 38 44 28 36 48 40 34 26 44 38 32

24 36 30 40 34 38 28 32 36 26 30 34 24 28 32 30 26 28 80 90 112 72 144 168 90 64 80 192 72 112 90 80 112 72 90 144 168 192 80 112 90 144 112 80 192 90 112 168 144 112 90 144 168 112 144 192 168 144 112 192 168 144 112 168 144 192 168 192 144 168 192 144 168 192 144 168 192 192 168 192 Belt pitch in millmetres 480 560 60 70 teeth teeth – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 600 75 teeth – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

– – – – – – – – – – – – – – – – – – – – – – – – 640 80 teeth – – – – – – – 134 – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – = – – – – – – 720 90 teeth – – – 150 – – – 177 – – 153 – – – – 156 – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 800 100 teeth 165 – – 192 – – – 218 168 – 195 – – 171 – 199 – – – – 174 – – – – 178 – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 880 110 teeth 207 – – 233 – – 178 259 210 – 237 – 181 214 – 240 184 – – – 217 – 187 – – 220

– 191 – – – – 194 – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 960 120 teeth 248 217 – 274 – – 220 300 252 – 278 – 224 255 – 281 227 – – – 259 – 230 – – 262 – 234 – – – – 237 – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 1040 130 teeth 290 259 – 315 – – 262 340 293 – 319 – 266 297 – 322 269 – – – 300 – 273 – 204 304 – 276 207 – – 210 279 – – 213 – – – – 216 – – – 219 – – – – – – – – – – – – – – – – – 1120 140 teeth 330 300 232 356 – – 304 381 334 – 359 238 307 338 242 363 311 – – – 341 245 314 – 248 345 – 318 251 – – 255 321 – – 258 – – – – 261 – – – 264 – – – – – – – – – – – – – – – – – All centre distances are rounded values – Consult your local

Authorised Distributor if centre distance is fixed. 100 1200 150 teeth 371 341 274 396 – – 345 421 375 – 400 281 348 378 284 403 352 – – – 382 288 355 – 291 385 – 359 294 – – 298 362 – – 301 – – – – 304 – – – 308 – – – – – – – – – – – – – – – – – 1280 160 teeth 411 382 316 436 – – 385 461 415 – 440 323 389 419 326 444 393 – – – 422 330 396 – 333 426 – 400 337 – – 340 403 – – 343 – – – 244 347 – – 247 350 – 250 – – – 253 – – 256 – – 259 – – – – – 1440 180 teeth 492 463 399 517 299 – 467 542 496 – 521 406 470 500 409 524 474 312 – – 503 413 477 319 416 507 – 481 420 – 325 423 485 328 – 427 331 – – 335 430 – – 338 434 – 341 – – – 344 – – 348 – – 351 269 – – 272 – 1600 200 teeth 573 544 480 597 384 – 547 622 576 – 601 487 551 580 491 605 555 397 320 – 584 495 558 404 498 588 – 562 502 333 411 505 566 414

339 509 417 – 346 421 512 – 349 424 516 352 427 – 355 – 431 358 – 434 361 – 437 364 – – 368 – 1760 220 teeth 653 624 561 678 467 394 628 702 657 – 681 569 632 661 572 685 635 480 407 – 664 576 639 487 579 668 340 643 583 420 494 587 647 498 427 590 501 352 433 505 594 358 437 508 597 440 511 365 443 368 515 446 371 518 450 374 522 453 377 380 478 383 1800 225 teeth 673 644 582 698 487 415 648 722 677 – 702 589 652 681 593 705 656 501 428 350 685 596 659 508 600 688 363 663 603 442 515 607 667 518 448 611 522 375 455 525 614 381 459 529 618 461 532 388 465 391 536 468 394 539 471 397 542 475 400 403 456 406 2000 250 teeth 774 745 683 798 589 519 749 822 777 446 802 690 752 781 694 806 756 604 533 459 785 697 760 611 701 789 472 764 705 547 618 708 767 621 553 712 625 485 560 628 716 492 564 632 719 567 635 498 570 502 639 574 505 642 577 508 646 581 511 515 584 519 2400 300 teeth 974 946 884 998 792 724 949 1023 978 654 1002 891 953 982 895 1006 957 807 738

668 986 899 961 814 903 989 682 985 906 752 821 910 968 825 760 914 829 696 767 832 917 703 770 836 921 774 839 710 777 713 843 781 716 847 784 720 850 785 723 727 791 730 2600 325 teeth 1074 1046 984 1099 893 825 1050 1123 1078 757 1102 992 1053 1082 996 1106 1057 908 840 771 1086 999 1061 915 1003 1090 785 1065 1007 854 922 1011 1069 926 862 1014 930 799 869 933 1018 806 872 937 1022 876 941 813 879 816 944 883 820 948 887 823 952 890 827 830 894 834 2800 350 teeth 1174 1146 1085 1199 994 927 1150 1223 1178 858 1203 1092 1154 1182 1096 1206 1157 1009 941 873 1186 1100 1161 1016 1104 1190 887 1165 1107 956 1023 1111 1169 1027 963 1115 1031 901 970 1035 1119 908 974 1038 1122 978 1042 916 981 919 1046 995 923 1049 988 926 1053 992 930 933 996 937 Speed Ratio 2.50 2.50 2.55 2.57 2.57 2.63 2.65 2.65 2.67 2.67 2.77 2.80 2.81 2.86 2.95 3.00 3.00 3.00 3.00 3.00 3.08 3.11 3.21 3.27 3.29 3.33 3.43 3.46 3.50 3.50 3.60 3.73 3.75 3.79 3.82 4.00 4.00 4.00 4.20 4.24 4.31 4.36 4.42 4.50 4.67

4.67 4.80 4.90 4.94 5.05 5.14 5.25 5.33 5.54 5.60 5.65 6.00 6.00 6.00 6.40 6.46 6.86 synchronous belt drives Section : 4 Fenner Torque Drive Plus®3 14MXP & HTD 14M Drives Fenner Torque Drive PLUS 3 14MXP & HTD 14M Drives Centre Distance in millimetres Speed Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.03 1.04 1.05 1.06 1.06 1.06 1.07 1.07 1.09 1.10 1.10 1.11 1.12 1.13 1.13 1.14 1.14 1.16 1.17 1.17 1.18 1.19 1.20 1.20 1.21 1.22 1.24 1.25 1.26 1.27 1.27 1.29 1.29 1.29 1.31 1.33 1.33 1.33 1.36 1.38 1.38 1.40 1.41 1.43 Number of grooves on Driving Pulley Driven Pulley 28 29 30 32 34 36 38 40 44 48 56 29 28 38 36 34 32 30 28 44 40 29 36 34 32 30 28 56 38 48 29 34 32 30 40 28 36 29 32 38 30 44 28 56 34 29 30 36 48 28 32 29 40 34 28 28 29 30 32 34 36 38 40 44 48 56 30 29 40 38 36 34 32 30 48 44 32 40 38 36 34 32 64 44 56 34 40 38 36 48 34 44 36 40 48 38 56 36 72 44 38 40 48 64 38 44 40 56 48 40 Belt pitch in millmetres 966 69 teeth 287 280 273 259 245

231 217 203 – – – 276 283 210 224 238 252 266 280 – – 269 217 231 245 259 273 – – – 262 224 238 252 – 266 202 255 230 – 244 – 258 – 209 248 237 – – 251 215 240 – – 244 1190 85 teeth 399 392 385 371 357 343 329 315 287 259 – 388 395 322 336 350 364 378 392 273 301 381 329 343 357 371 385 – 308 – 374 336 350 364 286 378 314 367 343 293 357 244 371 – 321 360 349 300 – 363 328 353 257 306 356 1400 100 teeth 504 497 490 476 462 448 434 420 392 364 308 493 500 427 441 455 469 483 497 378 406 486 434 448 462 476 490 – 413 336 479 441 455 469 392 483 420 472 448 398 462 349 476 – 426 465 454 405 306 468 433 458 362 412 461 1610 115 teeth 609 602 595 581 567 553 539 525 497 469 413 598 605 532 546 560 574 588 602 483 511 591 539 553 567 581 595 385 518 441 584 546 560 574 497 588 525 577 553 504 567 454 581 355 532 570 560 510 411 574 538 563 468 517 566 1778 127 teeth 693 686 679 665 651 637 623 609 581 553 497 682 689 616 630 644 658 672 686

567 595 675 623 637 651 665 679 469 602 525 668 630 644 658 581 672 609 661 637 588 651 538 665 440 616 654 644 594 496 658 622 647 552 601 650 1890 135 teeth 749 742 735 721 707 693 679 665 637 609 553 738 745 672 686 700 714 728 742 623 651 731 679 693 707 721 735 525 658 581 724 686 700 714 637 728 665 717 693 644 707 594 721 496 672 710 700 650 552 714 678 703 608 657 706 2100 150 teeth 854 847 840 826 812 798 784 770 742 714 658 843 850 777 791 805 819 833 847 728 756 836 784 798 812 826 840 630 763 686 829 791 805 819 742 833 770 822 798 749 812 699 826 601 777 815 805 756 657 819 784 808 713 762 812 2310 165 teeth 959 952 945 931 917 903 889 875 847 819 763 948 955 882 896 910 924 938 952 833 861 941 889 903 917 931 945 735 868 791 934 896 910 924 847 938 875 927 903 854 917 805 931 706 882 920 910 861 762 924 889 913 818 867 917 2450 175 teeth 1029 1022 1015 1001 987 973 959 945 917 889 833 1018 1025 952 966 980 994 1008 1022 903 931 1011 959 973 987 1001 1015 805 938 861

1004 966 980 994 917 1008 945 997 973 924 987 875 1001 776 952 990 980 931 832 994 959 983 888 937 987 2590 185 teeth 1099 1092 1085 1071 1057 1043 1029 1015 987 959 903 1088 1095 1022 1036 1050 1064 1078 1092 973 1001 1081 1029 1043 1057 1071 1085 875 1008 931 1074 1036 1050 1064 987 1078 1015 1067 1043 994 1057 945 1071 846 1022 1060 1050 1001 902 1064 1029 1053 958 1008 1057 2800 200 teeth 1204 1197 1190 1176 1162 1148 1134 1120 1092 1064 1008 1193 1200 1127 1141 1155 1169 1183 1197 1078 1106 1186 1134 1148 1162 1176 1190 980 1113 1036 1179 1141 1155 1169 1092 1183 1120 1172 1148 1099 1162 1050 1176 951 1127 1165 1155 1106 1007 1169 1134 1158 1063 1113 1162 3150 225 teeth 1379 1372 1365 1351 1337 1323 1309 1295 1267 1239 1183 1368 1375 1302 1316 1330 1344 1358 1372 1253 1281 1361 1309 1323 1337 1351 1365 1155 1288 1211 1354 1316 1330 1344 1267 1358 1295 1347 1323 1274 1337 1225 1351 1126 1302 1340 1330 1281 1182 1344 1309 1333 1238 1288 1337 3500 250 teeth 1554 1547 1540 1526

1512 1498 1484 1470 1442 1414 1358 1543 1550 1477 1491 1505 1519 1533 1547 1428 1456 1536 1484 1498 1512 1526 1540 1330 1463 1386 1529 1491 1505 1519 1442 1533 1470 1522 1498 1449 1512 1400 1526 1302 1477 1515 1505 1456 1358 1519 1484 1508 1414 1463 1512 3850 275 teeth 1729 1722 1715 1701 1687 1673 1659 1645 1617 1589 1533 1718 1725 1652 1666 1680 1694 1708 1722 1603 1631 1711 1659 1673 1687 1701 1715 1505 1638 1561 1704 1666 1680 1694 1617 1708 1645 1697 1673 1624 1687 1575 1701 1477 1652 1690 1680 1631 1533 1694 1659 1683 1589 1638 1687 4326 309 teeth 1967 1960 1953 1939 1925 1911 1897 1883 1855 1827 1771 1956 1963 1890 1904 1918 1932 1946 1960 1841 1869 1949 1897 1911 1925 1939 1953 1743 1876 1799 1942 1904 1918 1932 1855 1946 1883 1935 1911 1862 1925 1813 1939 1715 1890 1928 1918 1869 1771 1932 1897 1921 1827 1876 1925 4578 327 teeth 2093 2086 2079 2065 2051 2037 2023 2009 1981 1953 1897 2082 2089 2016 2030 2044 2058 2072 2086 1967 1995 2075 2023 2037 2051 2065 2079 1869 2002

1925 2068 2030 2044 2058 1981 2072 2009 2061 2037 1988 2051 1939 2065 1841 2016 2054 2044 1995 1897 2058 2023 2047 1953 2002 2051 Speed Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.04 1.05 1.06 1.06 1.06 1.07 1.07 1.09 1.10 1.10 1.11 1.12 1.13 1.13 1.14 1.14 1.16 1.17 1.17 1.18 1.19 1.20 1.20 1.21 1.22 1.24 1.25 1.26 1.27 1.27 1.29 1.29 1.29 1.31 1.33 1.33 1.33 1.36 1.38 1.38 1.40 1.41 1.43 All centre distances are rounded values – Consult your local Authorised Distributor if centre distance is fixed. FEN01/14 : Drive Design & Maintenance Manual 101 Section : 4 Synchronous BELT drives Fenner Torque Drive PLUS 3 14MXP & HTD 14M Drives Centre Distance in millimetres Speed Ratio 1.43 1.45 1.47 1.47 1.50 1.50 1.52 1.56 1.57 1.60 1.60 1.61 1.64 1.65 1.66 1.67 1.68 1.71 1.75 1.78 1.80 1.82 1.87 1.88 1.88 1.89 1.93 2.00 2.00 2.00 2.00 2.00 2.05 2.11 2.12 2.13 2.21 2.22 2.25 2.25 2.29 2.33 2.35 2.37 2.40 2.48 2.50 2.50 2.55 2.57 2.57 2.65 2.67 2.76

2.80 Number of grooves on Driving Pulley Driven Pulley 56 44 30 38 32 48 29 36 28 30 40 56 44 34 29 48 38 28 32 36 40 44 30 48 34 38 29 28 32 36 40 56 44 38 34 30 29 36 32 40 28 48 34 38 30 29 32 36 44 28 56 34 30 29 40 80 64 44 56 48 72 44 56 44 48 64 90 72 56 48 80 64 48 56 64 72 80 56 90 64 72 56 56 64 72 80 112 90 80 72 64 64 80 72 90 64 112 80 90 72 72 80 90 112 72 144 90 80 80 112 Belt pitch in millmetres 966 69 teeth – – 222 – 200 – 225 – 228 206 – – – – 209 – – 212 – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 1190 85 teeth – – 335 263 313 – 338 269 341 319 – – – 276 323 – – 326 282 – – – 288 – 243 – 291 294 249 – – – – – – 255 258 – – – 261 – – – – – – – – – – – – – – 1400 100 teeth – 319 440 369 418 – 443 375 447 425 332 – 287 382 428 – 338 432 388 344 300 – 395 –

351 306 389 401 357 312 – – – – 318 363 366 – 324 – 369 – 282 – 330 333 288 – – 336 – – 294 297 – 1610 115 teeth 325 425 545 474 524 381 548 481 552 530 438 – 394 488 534 350 444 537 494 451 407 362 501 – 457 413 504 507 464 419 374 – 320 380 426 470 473 387 432 331 476 – 393 337 438 441 399 343 – 444 – 349 405 408 – 1778 127 teeth 410 509 629 559 608 466 633 565 636 615 522 370 479 572 618 435 529 621 579 535 492 448 585 395 542 498 588 592 548 505 460 – 407 467 511 555 558 473 517 419 561 – 479 425 524 527 485 431 – 530 – 437 491 494 – 1890 135 teeth 466 565 685 615 664 522 689 621 692 671 579 427 535 628 674 492 585 678 635 592 548 505 641 452 598 555 645 648 605 561 517 – 465 524 568 611 615 530 574 477 618 – 536 483 580 584 542 489 368 587 – 495 549 552 379 2100 150 teeth 571 671 790 720 769 628 794 727 797 776 684 534 641 733 779 598 691 783 740 697 654 611 747 559 704 661 750 753 710 667 624 444 572 630 674 717 720 636

680 584 724 468 643 591 687 690 649 597 480 693 – 603 656 659 492 2310 165 teeth 677 776 895 825 874 733 899 832 902 881 789 640 746 839 884 703 796 888 845 803 760 717 852 665 809 766 855 859 816 773 730 553 678 736 779 823 826 743 786 691 829 577 749 697 792 796 755 704 590 799 – 710 762 765 602 All centre distances are rounded values – Consult your local Authorised Distributor if centre distance is fixed. 102 2450 175 teeth 747 846 965 895 944 803 969 902 972 951 859 710 817 909 955 774 866 958 915 873 830 787 922 736 879 837 926 929 886 843 800 625 749 807 850 893 896 813 856 762 899 649 820 768 863 866 826 775 662 869 485 781 833 836 674 2590 185 teeth 817 916 1036 965 1014 873 1039 972 1042 1021 929 780 887 979 1025 844 936 1028 986 943 900 857 992 807 950 907 996 999 956 913 870 696 820 877 920 963 966 884 927 833 970 721 890 839 933 937 897 845 733 940 561 852 903 906 746 2800 200 teeth 922 1021 1141 1070 1119 979 1144 1077 1147 1126 1035 886 992 1084 1130 949 1041

1133 1091 1048 1005 963 1097 912 1055 1012 1101 1104 1062 1019 976 802 925 983 1026 1068 1072 989 1032 938 1075 828 996 945 1039 1042 1002 951 840 1045 671 958 1009 1012 853 3150 225 teeth 1098 1196 1316 1245 1295 1154 1319 1252 1323 1301 1210 1061 1167 1259 1305 1125 1217 1308 1266 1223 1181 1138 1273 1088 1230 1188 1276 1279 1237 1194 1152 979 1101 1158 1201 1244 1247 1165 1208 1114 1250 1005 1172 1121 1214 1218 1178 1128 1018 1221 852 1134 1185 1188 1031 3500 250 teeth 1273 1371 1491 1420 1470 1329 1494 1427 1498 1476 1385 1237 1343 1434 1480 1300 1392 1483 1441 1399 1356 1314 1448 1264 1405 1356 1451 1455 1412 1370 1327 1155 1277 1334 1376 1419 1422 1340 1383 1290 1426 1181 1347 1297 1390 1393 1354 1303 1194 1397 1031 1310 1360 1364 1207 3850 275 teeth 1448 1546 1666 1595 1645 1504 1669 1602 1673 1652 1560 1412 1518 1609 1655 1475 1567 1658 1616 1574 1531 1489 1623 1439 1581 1538 1626 1630 1587 1545 1502 1331 1452 1509 1552 1594 1598 1516 1558 1466 1601 1358 1523 1472 1565 1569

1529 1479 1371 1572 1209 1486 1536 1539 1384 4326 309 teeth 1686 1784 1904 1834 1883 1742 1907 1840 1911 1890 1798 1650 1756 1847 1893 1714 1805 1896 1854 1812 1770 1727 1861 1677 1819 1776 1865 1868 1826 1783 1741 1570 1691 1747 1790 1832 1836 1754 1797 1704 1839 1597 1761 1711 1804 1807 1758 1718 1610 1810 1450 1724 1775 1778 1623 4578 327 teeth 1812 1910 2030 1960 2009 1868 2033 1966 2037 2016 1924 1776 1882 1973 2019 1840 1931 2023 1980 1938 1896 1853 1987 1804 1945 1902 1991 1994 1952 1909 1867 1696 1817 1874 1916 1959 1962 1880 1923 1831 1965 1723 1887 1837 1930 1933 1894 1844 1736 1937 1577 1851 1901 1904 1750 Speed Ratio 1.43 1.45 1.47 1.47 1.50 1.50 1.52 1.56 1.57 1.60 1.60 1.61 1.64 1.65 1.66 1.67 1.68 1.71 1.75 1.78 1.80 1.82 1.87 1.88 1.88 1.89 1.93 2.00 2.00 2.00 2.00 2.00 2.05 2.11 2.12 2.13 2.21 2.22 2.25 2.25 2.29 2.33 2.35 2.37 2.40 2.48 2.50 2.50 2.55 2.57 2.57 2.65 2.67 2.76 2.80 synchronous belt drives Section : 4 Fenner Torque Drive Plus®3 14MXP & HTD

14M Drives Fenner Torque Drive PLUS 3 14MXP & HTD 14M Drives Centre Distance in millimetres Number of grooves on Speed Ratio 2.81 2.86 2.95 3.00 3.00 3.00 3.10 3.11 3.21 3.27 3.29 3.43 3.50 3.50 3.60 3.73 3.79 3.82 3.86 4.00 4.00 4.00 4.20 4.24 4.36 4.42 4.50 4.67 4.80 4.80 4.94 4.97 5.05 5.14 5.25 5.33 5.60 5.65 5.79 6.00 6.00 6.40 6.62 6.86 Driving Pulley Driven Pulley 32 28 38 30 48 56 29 36 28 44 34 56 32 48 40 30 38 44 29 28 36 48 40 34 44 38 32 36 30 40 34 29 38 28 32 36 30 34 29 28 32 30 29 28 90 80 112 90 144 168 90 112 90 144 112 192 112 168 144 112 144 168 112 112 144 192 168 144 192 168 144 168 144 192 168 144 192 144 168 192 168 192 168 168 192 192 192 192 Belt pitch in millmetres 966 1190 1400 1610 1778 1890 2100 2310 2450 2590 2800 3150 3500 3850 4326 4578 69 teeth – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 85

teeth – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 100 teeth – 300 – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 115 teeth 354 411 – 360 – – 363 – 366 – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 127 teeth 443 498 – 449 – – 452 – 455 – – – – – – 343 – – 346 349 – – – – – – – – – – – – – – – – – – – – – – – – 135 teeth 501 555 385 507 – – 510 390 513 – 396 – 401 – – 407 – – 410 413 – – – – – – – – – – – – – – – – – – – – – – – – 150 teeth 609 662 498 615 – – 619 504 622 – 509 – 515 – –

521 – – 524 527 – – – – – – – – – – – – – – – – – – – – – – – – 165 teeth 716 768 608 723 – – 726 614 729 441 620 – 626 – 452 632 457 – 635 638 462 – – 488 – – 473 – 479 – – 481 – 484 – – – – – – – – – – 175 teeth 787 839 680 794 508 – 797 686 800 519 692 – 698 – 530 704 536 – 707 710 542 – – 547 – – 553 – 558 – – 561 – 564 – – – – – – – – – – 185 teeth 858 910 752 865 584 – 868 758 871 595 764 – 770 – 607 777 612 – 780 783 618 – – 624 – 488 630 493 635 – 499 638 – 641 504 – 509 – 512 514 – – – – 200 teeth 964 1015 859 971 695 560 974 865 977 707 872 –– 878 583 719 884 725 594 887 890 730 –– 605 736 –– 610 742 616 748 –– 621 751 –– 754 627 –– 632 –– 635 638 –– –– –– –– 225 teeth 1141 1191 1037 1147 877 749 1150 1043 1154 889 1050 635 1056 773 901 1062 907 784 1065 1069

913 654 796 919 668 802 925 807 931 678 813 934 684 937 819 689 825 695 828 830 700 706 708 711 250 teeth 1317 1367 1214 1323 1056 933 1327 1220 1330 1069 1227 826 1233 957 1081 1240 1087 969 1243 1246 1094 849 981 1100 861 986 1106 992 1112 872 998 1115 878 1118 1004 884 1010 889 1013 1016 895 901 904 906 275 teeth 1492 1543 1390 1499 1234 1113 1502 1397 1506 1247 1403 1012 1410 1138 1260 1416 1266 1150 1419 1423 1272 1035 1162 1279 1047 1168 1285 1174 1291 1059 1180 1294 1065 1297 1186 1071 1192 1076 1195 1198 1082 1088 1091 1094 309 teeth 1731 1781 1630 1738 1475 1356 1741 1636 1745 1488 1643 1259 1649 1381 1501 1656 1507 1394 1659 1662 1514 1283 1406 1520 1295 1412 1527 1419 1533 1307 1425 1536 1313 1539 1431 1319 1437 1325 1440 1443 1331 1337 1340 1343 327 teeth 1858 1907 1756 1864 1603 1484 1868 1763 1871 1616 1769 1388 1776 1509 1629 1783 1635 1522 1786 1789 1641 1413 1534 1648 1425 1541 1654 1547 1661 1437 1553 1664 1443 1667 1560 1449 1566 1455 1569 1572 1462 1468 1471

1474 Speed Ratio 2.81 2.86 2.95 3.00 3.00 3.00 3.10 3.11 3.21 3.27 3.29 3.43 3.50 3.50 3.60 3.73 3.79 3.82 3.86 4.00 4.00 4.00 4.20 4.24 4.36 4.42 4.50 4.67 4.80 4.80 4.94 4.97 5.05 5.14 5.25 5.33 5.60 5.65 5.79 6.00 6.00 6.40 6.62 6.86 All centre distances are rounded values – Consult your local Authorised Distributor if centre distance is fixed. FEN01/14 : Drive Design & Maintenance Manual 103 Section : 4 Synchronous BELT drives Fenner Torque Drive PLUS 3 HTD Pulleys 5MM PITCH (5M) HTD PULLEYS (FOR USE WITH HTD BELTS ONLY) Catalogue Code No. of Grooves Pulley Designation Pulley Type Bush No. Max Bore Metric Inch Pitch Dia. Outside Dia. A F J K L M N 043F0028 28 28–5M–15 1F 6mm* 19 3/4 44.56 43.42 49 22 – – 30 8 31 043F0032 32 32–5M–15 1F 8mm* 22 7/8 50.93 49.79 56 22 – – 30 8 38 043F0034 34 34–5M–15 2F 1008 25 1 54.11 52.97 57 22 – – 22 0 0 043F0036 36 36–5M–15 2F 1108 28

11/8 57.30 56.15 60 22 – – 22 0 0 043F0038 38 38–5M–15 2F 1108 28 11/8 60.48 59.34 67 22 – – 22 0 0 043F0040 40 40–5M–15 2F 1108 28 11/8 63.66 62.52 71 22 – – 22 0 0 043F0044 44 44–5M–15 2F 1108 28 11/8 70.03 68.89 75 22 – – 22 0 0 043F0048 48 48–5M–15 2F 1210 32 11/4 76.39 75.25 83 22 – – 25 3 59 043F0056 56 56–5M–15 2F 1210 32 11/4 89.13 87.98 93 22 – – 25 3 75 043F0064 64 64–5M–15 2F 1210 32 11/4 101.86 100.72 106 22 – – 25 3 80 043F0072 72 72–5M–15 11 1610 42 15/8 114.59 113.45 –– 22 – – 25 3 92 043F0080 80 80–5M–15 11 1610 42 15/8 127.32 126.18 –– 22 – – 25 3 92 043F0090 90 90–5M–15 10 1610 42 15/8 143.24 142.10 –– 20.5 – – 25 2.3 92 043F0112 112 112–5M–15 10 1610 42 15/8 178.25 177.11 –– 20.5 – – 25 2.3 110

043F0136 136 136–5M–15 10 2012 50 2 216.45 215.31 –– 20.5 – – 32 5.8 110 These pulleys are used for both 15mm wide and 9mm wide belts. Dimensions in millimetres unless otherwise stated. * Pilot bore only Prime functional dimensions are correct at the time of publication. Pulley types and non-functional dimensions may vary. 70 80 90 8 10 12 14 FENNER BELT TENSION INDICATOR The high performance and efficiency of Fenner Synchronous belts requires correct tension. We recommend using the Fenner Belt Tension Indicator. NOTE: To measure tension in synchronous belts, place a piece of rigid material across the belt width at midspan, before applying the gauge. 104 70 Deflection in mm (larger marker ring) 80 90 8 10 12 14 Setting force in kgf (smaller marker ring) synchronous belt drives Section : 4 Fenner Torque Drive Plus® 3 8MXP & HTD 8M Pulleys Fenner Torque Drive PLUS 3 8MXP & HTD 8M Pulleys 8MM PULLEYS (20MM WIDE BELT) Catalogue No. of

Pulley Pulley Bush Code Grooves Designation Type No. 043J0022 22 22–8M–20 4F 1108 043J0024 24 24–8M–20 4F 1108 043J0026 26 26–8M–20 4F 1108 043J0028 28 28–8M–20 4F 1108 043J0030 30 30–8M–20 4F 1108 043J0032 32 32–8M–20 4F 1610 043J0034 34 34–8M–20 4F 1610 043J0036 36 36–8M–20 4F 1610 043J0038 38 38–8M–20 4F 1610 043J0040 40 40–8M–20 4F 1610 043J0044 44 44–8M–20 2F 2012 043J0048 48 48–8M–20 2F 2012 043J0056 56 56–8M–20 2F 2012 043J0064 64 64–8M–20 2F* 2012 043J0072 72 72–8M–20 2F* 2012 043J0080 80 80–8M–20 9 2012 043J0090 90 90–8M–20 9 2012 * These pulleys are recessed to a plate centre – under rim diameter J. Max Bore Metric Inch 25 1 28 11/8 28 11/8 28 11/8 28 11/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 50 2 50 2 50 2 50 2 50 2 50 2 50 2 Pitch Dia. Outside Dia. 56.02 54.65 61.12 59.75 66.21 64.84 71.30 70.08 76.39 75.13 81.49 80.16 86.58 85.22 91.67 90.30 96.77 95.39 101.86 100.49 112.05 110.67 122.23 120.86

142.60 141.23 162.97 161.60 183.35 181.97 203.72 202.35 229.18 227.81 A F J K L M N 60 66 70 75 83 87 91 97 102 106 120 128 150 168 192 –– –– 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 37 44 45 50 58 63 64 68 72 76 0 0 0 137 158 180 204 6 6 6 6 6 3 3 3 3 3 – – – – – 0 0 22 22 22 22 22 25 25 25 25 25 32 32 32 32 32 32 32 – – – – – – – – – – 4 4 4 4 4 4 4 – – – – – – – – – – 92 96 110 110 110 110 110 8MM PULLEYS (30MM WIDE BELT) Catalogue Code 043K0022 043K0024 043K0026 043K0028 043K0030 043K0032 043K0034 043K0036 043K0038 043K0040 043K0044 043K0048 043K0056 043K0064 043K0072 043K0080 043K0090 043K0112 043K0144 No. of Grooves 22 24 26 28 30 32 34 36 38 40 44 48 56 64 72 80 90 112 144 Pulley Designation 22–8M–30 24–8M–30 26–8M–30 28–8M–30 30–8M–30 32–8M–30 34–8M–30 36–8M–30 38–8M–30 40–8M–30 44–8M–30 48–8M–30 56–8M–30 64–8M–30 72–8M–30 80–8M–30

90–8M–30 112–8M–30 144–8M–30 Pulley Type 4F 4F 4F 4F 2F 2F 2F 2F 2F 2F 4F 4F 6F 2F* 2F* 9 9 9 8 Bush No. 1008 1108 1108 1210 1615 1615 1615 1615 1615 1615 2012 2012 2012 2517 2517 2517 2517 2517 2517 Max Bore Metric Inch 25 1 28 11/8 28 11/8 32 11/4 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 50 2 50 2 50 2 60 21/2 60 21/2 60 21/2 60 21/2 60 21/2 60 21/2 Pitch Dia. 56.02 61.12 66.21 71.30 76.39 81.49 86.58 91.67 96.77 101.86 112.05 122.23 142.60 162.97 183.35 203.72 229.18 285.21 366.69 Outside Dia. 54.65 59.75 64.84 70.08 75.13 80.16 85.22 90.30 95.39 100.49 110.67 120.86 141.23 161.60 181.97 202.35 227.81 283.83 365.32 A F J K L M N 60 66 70 75 83 87 91 97 102 106 120 128 150 168 192 –– –– –– –– 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 37 44 44 50 0 0 0 0 0 0 86 90 110 0 158 180 204 254 336 16 16 16 13 0 0 0 0 0 0 6 6 3 0 0 0 0 0 0 22 22 22 25 38 38 38 38 38 38 32 32 32 45 45 45 45 45 45 0 0 0 0 0 0 0 0 0 0 0 0 3 7 7 7

7 7 7 – – – – – – – – – – – – – 125 125 125 125 125 125 8MM PULLEYS (50MM WIDE BELT) Catalogue Code No. of Grooves Pulley Designation Pulley Type Bush No. 043L0028 043L0030 043L0032 043L0034 043L0036 043L0038 043L0040 043L0044 043L0048 043L0056 043L0064 043L0072 043L0080 043L0090 043L0112 043L0144 043L0168 043L0192 28 30 32 34 36 38 40 44 48 56 64 72 80 90 112 144 168 192 28–8M–50 30–8M–50 32–8M–50 34–8M–50 36–8M–50 38–8M–50 40–8M–50 44–8M–50 48–8M–50 56–8M–50 64–8M–50 72–8M–50 80–8M–50 90–8M–50 112–8M–50 144–8M–50 168–8M–50 192–8M–50 4F 4F 4F 4F 4F 4F 6F 6F 6F 6F 6F 7F 6 7 7 8 10 10 1210 1615 1615 1615 1615 1615 2012 2012 2012 2517 2517 2517 3020 3020 3020 3020 3525 3525 Max Bore Metric Inch 32 11/4 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 50 2 50 2 50 2 60 21/2 60 21/2 60 21/2 75 3 75 3 75 3 75 3 100 4 100 4 Pulley Type 6F 6F 6F 6F 6F 6F 6F 6F 6F 6 6 7 7 8 8 Bush No. 1615

1615 1615 2012 2012 2517 2517 2517 3020 3020 3020 3020 3525 3525 3525 Metric 42 42 42 50 50 60 60 60 75 75 75 75 100 100 100 Pitch Dia. 71.30 76.39 81.49 86.58 91.67 96.77 101.86 112.05 122.23 142.60 162.97 183.35 203.72 229.18 285.21 366.69 427.81 488.92 Outside Dia. 70.08 75.13 80.16 85.22 90.30 95.39 100.49 110.67 120.86 141.23 161.60 181.97 202.35 227.81 283.83 365.32 426.44 487.55 a f j k l m n 75 83 87 91 97 102 106 120 128 150 168 192 –– –– –– –– –– –– 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 50 58 63 65 68 72 80 86 95 116 136 158 180 204 254 336 395 455 35.0 22.0 22.0 22.0 22.0 22.0 14.0 14.0 14.0 7.5 7.5 7.5 4.5 4.5 4.5 4.5 2.5 2.5 25 38 38 38 38 38 32 32 32 45 45 45 51 51 51 51 65 65 0.0 0.0 0.0 0.0 0.0 0.0 14.0 14.0 14.0 7.5 7.5 7.5 4.5 4.5 4.5 4.5 2.5 2.5 – – – – – – – – – – – 125 – 160 170 170 198 198 8MM PULLEYS (85MM WIDE BELT) Catalogue Code 043M0034 043M0036 043M0038 043M0040 043M0044

043M0048 043M0056 043M0064 043M0072 043M0080 043M0090 043M0112 043M0144 043M0168 043M0192 No. of Grooves 34 36 38 40 44 48 56 64 72 80 90 112 144 168 192 Pulley Designation 34–8M–85 36–8M–85 38–8M–85 40–8M–85 44–8M–85 48–8M–85 56–8M–85 64–8M–85 72–8M–85 80–8M–85 90–8M–85 112–8M–85 144–8M–85 168–8M–85 192–8M–85 Max Bore Inch 15/8 15/8 15/8 2 2 21/2 21/2 21/2 3 3 3 3 4 4 4 Pitch Dia. Outside Dia. A F J K L M N 86.58 91.67 96.77 101.86 112.05 122.23 142.60 162.97 183.35 203.72 229.18 285.21 366.69 427.81 488.92 85.22 90.30 95.39 100.49 110.67 120.86 141.23 161.60 181.97 202.35 227.81 283.83 365.32 426.44 487.55 91 97 102 106 120 128 150 168 192 –– –– –– –– –– –– 95 95 95 95 95 95 95 95 95 95 95 95 95 95 95 65 68 72 80 86 97 116 136 150 180 204 254 336 395 455 28 28 28 31 31 25 25 25 22 22 22 22 15 15 15 38 38 38 32 32 45 45 45 51 51 51 51 65 65 65 28 28 28 31 31 25 25 25 22 22 22 22 15

15 15 – – – – – – – – – – – 170 198 198 198 Dimensions in millimetres unless otherwise stated. Prime functional dimensions are correct at the time of publication. Pulley types and non-functional dimensions may vary FEN01/14 : Drive Design & Maintenance Manual 105 Section : 4 Synchronous BELT drives Fenner Torque Drive Plus 3 14MXP & HTD 14M Pulleys ® Fenner Torque Drive PLUS 3 14MXP & HTD 14M Pulleys 14MM PULLEYS (40MM WIDE BELT) Catalogue Code 043N0028 043N0029 043N0030 043N0032 043N0034 043N0036 043N0038 043N0040 043N0044 043N0048 043N0056 043N0064 043N0072 043N0080 043N0090 043N0112 043N0144 043N0168 043N0192 No. of Grooves 28 29 30 32 34 36 38 40 44 48 56 64 72 80 90 112 144 168 192 Pulley Designation 28–14M–40 29–14M–40 30–14M–40 32–14M–40 34–14M–40 36–14M–40 38–14M–40 40–14M–40 44–14M–40 48–14M–40 56–14M–40 64–14M–40 72–14M–40 80–14M–40 90–14M–40 112–14M–40

144–14M–40 168–14M–40 192–14M–40 Max Bore Pulley Type 6F 6F 6F 6F 6F 6F 6F 6F 6F 6F 6F 7F 7 8 8 8 8 8 8 Bush No. 2012 2012 2012 2012 2517 2517 2517 2517 3020 3020 3020 3020 3020 3020 3020 3020 3020 3020 3020 Metric 50 50 50 50 60 60 60 60 75 75 75 75 75 75 75 75 75 75 75 Pulley Type 6F 6F 6F 6F 6F 6F 6F 6F 6F 6F 6F 7F 8 8 8 8 8 8 8 Bush No. 2012 2012 2517 2517 2517 2517 2517 2517 3020 3020 3020 3020 3020 3020 3020 3020 3020 3020 3020 Max Bore Metric Inch 50 2 50 2 60 21/2 60 21/2 60 21/2 60 21/2 60 21/2 60 21/2 75 3 75 3 75 3 75 3 75 3 75 3 75 3 75 3 75 3 75 3 75 3 Pulley Type 6F 6F 6F 6F 6F 6F 6F 6F 6F 6F 6F 7F 7 7 8 8 8 8 8 Bush No. 2517 2517 2517 2517 2517 3020 3020 3020 3030 3030 3525 3525 3525 3525 3525 3525 3525 3525 4040 Max Bore Metric Inch 60 21/2 60 21/2 60 21/2 60 21/2 60 21/2 75 3 75 3 75 3 75 3 75 3 100 4 100 4 100 4 100 4 100 4 100 4 100 4 100 4 115 41/2 Inch 2 2 2 2 21/2 21/2 21/2 21/2 3 3 3 3 3 3 3 3 3 3 3 Pitch Dia. 124.78 129.23 133.69 142.60

151.51 160.43 169.34 178.25 196.08 213.90 249.55 285.21 320.86 356.51 401.07 499.11 641.71 748.66 855.62 Outside Dia. 122.12 126.57 130.99 139.88 148.79 157.68 166.60 175.49 193.28 211.11 246.76 282.41 318.06 353.71 398.28 496.32 638.92 745.87 852.82 A F J K L M N 128 138 138 154 160 168 183 188 211 226 256 296 – – – – – – – 54 54 54 54 54 54 54 54 54 54 54 54 54 54 54 54 54 54 54 94 98 98 108 110 120 130 138 155 170 208 240 280 315 360 457 600 706 813 11.0 11.0 11.0 11.0 4.5 4.5 4.5 4.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 32 32 32 32 45 45 45 45 51 51 51 51 51 51 51 51 51 51 51 11.0 11.0 11.0 11.0 4.5 4.5 4.5 4.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 – – – – – – – – – – – 170 170 170 170 170 170 170 170 Pitch Dia. Outside Dia. 124.78 122.12 129.23 126.57 133.69 130.99 142.60 139.88 151.51 148.79 160.43 157.68 169.34 166.60 178.25 175.49 196.08 193.28 213.90 211.11 249.55 246.76 285.21 282.41 320.86 318.06 356.51 353.71

401.07 398.28 499.11 496.32 641.71 638.92 748.66 745.87 855.62 852.82 A F J K L M N 128 138 138 154 160 168 183 188 211 226 256 296 – – – – – – – 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 94 100 100 108 110 120 130 138 155 170 208 240 280 315 360 457 600 706 813 19.0 19.0 12.5 12.5 12.5 12.5 12.5 12.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 32 32 45 45 45 45 45 45 51 51 51 51 51 51 51 51 51 51 51 19.0 19.0 12.5 12.5 12.5 12.5 12.5 12.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 – – – – – – – – – – – 170 170 170 170 170 170 170 170 A F J K L M N 128 138 138 154 160 168 183 188 211 226 256 296 – – – – – – – 102 102 102 102 102 102 102 102 102 102 102 102 102 102 102 102 102 102 102 98 60 100 108 110 125 130 138 155 170 210 240 280 315 360 457 600 706 813 28.5 28.5 28.5 28.5 28.5 25.5 25.5 25.5 13.0 13.0 18.5 18.5 18.5 18.5 18.5 18.5 18.5 18.5 0.0 45 45 45 45 45 51 51 51 76 76 65 65 65 65 65 65

65 65 102 28.5 28.5 28.5 28.5 28.5 25.5 25.5 25.5 13.0 13.0 18.5 18.5 18.5 18.5 18.5 18.5 18.5 18.5 0.0 – – – – – – – – – – – – 178 178 178 178 206 206 216 14MM PULLEYS (55MM WIDE BELT) Catalogue Code 043P0028 043P0029 043P0030 043P0032 043P0034 043P0036 043P0038 043P0040 043P0044 043P0048 043P0056 043P0064 043P0072 043P0080 043P0090 043P0112 043P0144 043P0168 043P0192 No. of Grooves 28 29 30 32 34 36 38 40 44 48 56 64 72 80 90 112 144 168 192 Pulley Designation 28–14M–55 29–14M–55 30–14M–55 32–14M–55 34–14M–55 36–14M–55 38–14M–55 40–14M–55 44–14M–55 48–14M–55 56–14M–55 64–14M–55 72–14M–55 80–14M–55 90–14M–55 112–14M–55 144–14M–55 168–14M–55 192–14M–55 14MM PULLEYS (85MM WIDE BELT) Catalogue Code 043R0028 043R0029 043R0030 043R0032 043R0034 043R0036 043R0038 043R0040 043R0044 043R0048 043R0056 043R0064 043R0072 043R0080 043R0090 043R0112 043R0144 043R0168 043R0192 No. of Grooves

28 29 30 32 34 36 38 40 44 48 56 64 72 80 90 112 144 168 192 Pulley Designation 28–14M–85 29–14M–85 30–14M–85 32–14M–85 34–14M–85 36–14M–85 38–14M–85 40–14M–85 44–14M–85 48–14M–85 56–14M–85 64–14M–85 72–14M–85 80–14M–85 90–14M–85 112–14M–85 144–14M–85 168–14M–85 192–14M–85 Dimensions in millimetres unless otherwise stated    Prime functional dimensions are correct at the time of publication. 106 Pitch Dia. 124.78 129.33 133.69 142.60 151.51 160.43 169.34 178.25 196.08 213.90 249.55 285.21 320.86 356.51 401.07 499.11 641.71 748.66 855.62 Outside Dia. 122.12 126.57 130.99 139.88 148.79 157.68 166.60 175.49 193.28 211.11 246.76 282.41 318.06 353.71 398.28 496.32 638.92 745.87 852.82 Taper Lock pulleys for use with 14MXP and 14M belts of 115mm and 170mm widths are available. Pulley types and non-functional dimensions may vary. synchronous belt drives Section : 4 Tming Drives and Belts Classical

Timing Drives and Belts CLASSICAL TIMING DRIVES Components for the original Timing Drive system are still available. Belts and pulleys for L (Light or 3/8" pitch) and H (Heavy or 1/2" pitch) drives are available from stock as listed on pages 106 to 107 whilst the table below includes XL (eXtra Light) and XH (eXtra Heavy) belts which are readily available but not always from stock. Catalogue Code 275S0006 275S0007 275S0008 275S0009 275S0010 275S0011 275S0012 275S0013 275S0014 275S0015 275S0016 H pitch belts of 3" width are available but not from stock. Order by catalogue codes shown on the following tables. Fenner Timing Belt drive components conform to ISO 5296 and to BS 4548. Drive powers of up to 50 kW can be accommodated and most of the pulleys use Taper Lock bushes for shaft fixing. (XL) EXTRA LIGHT* 1/4" (6,5mm) WIDE BELT Catalogue Belt Code Designation 160XL025 275S0017 170XL025 275S0018 180XL025 275S0019 190XL025 275S0020 100XL025 275S0021 110XL025

275S0022 120XL025 275S0023 130XL025 275S0024 140XL025 275S0025 150XL025 275S0026 160XL025 Catalogue Code 275S2006 275S2007 275S2008 275S2009 275S2010 275S2011 275S2012 275S2013 275S2014 275S2015 275S2016 Belt Designation 170XL025 180XL025 190XL025 200XL025 210XL025 220XL025 230XL025 240XL025 250XL025 260XL025 It is anticipated that the great majority of new drive requirements can best be satisfied with one of the more modern synchronomous drive systems. Should drive design details be required – consult your local Authorised Distributor 3/8" (9,5mm) WIDE BELT Catalogue Belt Code Designation 60XL037 275S2017 70XL037 275S2018 80XL037 275S2019 90XL037 275S2020 100XL037 275S2021 110XL037 275S2022 120XL037 275S2023 130XL037 275S2024 140XL037 275S2025 150XL037 275S2026 160XL037 Belt Designation 170XL037 180XL037 190XL037 200XL037 210XL037 220XL037 230XL037 240XL037 250XL037 260XL037 (L) LIGHT Catalogue Code 275L3012 275L3015 275L3019 275L3021 275L3022 275L3024 275L3025 275L3027

275L3028 275L3030 275L3032 1/2" (13mm) WIDE BELT Catalogue Belt Code Designation 124L050 275L3034 150L050 275L3037 187L050 275L3039 210L050 275L3042 225L050 275L3045 240L050 275L3048 255L050 275L3051 270L050 275L3054 285L050 275L3060 300L050 322L050 Belt Designation 345L050 367L050 390L050 420L050 450L050 480L050 510L050 540L050 600L050 Catalogue Code 275L4012 275L4015 275L4019 275L4021 275L4022 275L4024 275L4025 275L4027 275L4028 275L4030 275L4032 3/4" (19mm) WIDE BELT Catalogue Belt Code Designation 124L075 275L4034 150L075 275L4037 187L075 275L4039 210L075 275L4042 225L075 275L4045 240L075 275L4048 255L075 275L4051 270L075 275L4054 285L075 275L4060 300L075 322L075 Belt Designation 345L075 367L075 390L075 420L075 450L075 480L075 510L075 540L075 600L075 Catalogue Code 275L5012 275L5015 275L5019 275L5021 275L5022 275L5024 275L5025 275L5027 275L5028 275L5030 275L5032 1" (25mm) WIDE BELT Catalogue Belt Code Designation 124L100 275L5034 150L100 275L5037 187L100

275L5039 210L100 275L5042 225L100 275L5045 240L100 275L5048 255L100 275L5051 270L100 275L5054 285L100 275L5060 300L100 322L100 Belt Designation 345L100 367L100 390L100 420L100 450L100 480L100 510L100 540L100 600L100 (H) HEAVY 3/4" (19mm) WIDE BELT Catalogue Belt Code Designation 275H4024 240H075 275H4027 270H075 275H4030 300H075 275H4033 330H075 275H4036 360H075 275H4039 390H075 275H4042 420H075 275H4045 450H075 275H4048 480H075 275H4051 510H075 275H4054 540H075 275H4057 570H075 275H4060 600H075 275H4063 630H075 275H4066 660H075 275H4070 700H075 275H4075 750H075 275H4080 800H075 275H4085 850H075 275H4090 900H075 275H4100 1000H075 275H4110 1100H075 275H4125 1250H075 275H4140 1400H075 275H4170 1700H075 1" (25mm) WIDE BELT Catalogue Belt Code Designation 275H5024 240H100 275H5027 270H100 275H5030 300H100 275H5033 330H100 275H5036 360H100 275H5039 390H100 275H5042 420H100 275H5045 450H100 275H5048 480H100 275H5051 510H100 275H5054 540H100 275H5057 570H100 275H5060 600H100

275H5063 630H100 275H5066 660H100 275H5070 700H100 275H5075 750H100 275H5080 800H100 275H5085 850H100 275H5090 900H100 275H5100 1000H100 275H5110 1100H100 275H5125 1250H100 275H5140 1400H100 275H5170 1700H100 11/2" (38mm) WIDE BELT Catalogue Belt Code Designation 275H6024 240H150 275H6027 270H150 275H6030 300H150 275H6033 330H150 275H6036 360H150 275H6039 390H150 275H6042 420H150 275H6045 450H150 275H6048 480H150 275H6051 510H150 275H6054 540H150 275H6057 570H150 275H6060 600H150 275H6063 630H150 275H6066 660H150 275H6070 700H150 275H6075 750H150 275H6080 800H150 275H6085 850H150 275H6090 900H150 275H6100 1000H150 275H6110 1100H150 275H6125 1250H150 275H6140 1400H150 275H6170 1700H150 2" (51mm) WIDE BELT Catalogue Belt Code Designation 275H7024 240H200 275H7027 270H200 275H7030 300H200 275H7033 330H200 275H7036 360H200 275H7039 390H200 275H7042 420H200 275H7045 450H200 275H7048 480H200 275H7051 510H200 275H7054 540H200 275H7057 570H200 275H7060 600H200 275H7063 630H200

275H7066 660H200 275H7070 700H200 275H7075 750H200 275H7080 800H200 275H7085 850H200 275H7090 900H200 275H7100 1000H200 275H7110 1100H200 275H7125 1250H200 275H7140 1400H200 275H7170 1700H200 3" (76mm) WIDE BELT Catalogue Belt Code Designation 275H8024 240H300 275H8027 270H300 275H8030 300H300 275H8033 330H300 275H8036 360H300 275H8039 390H300 275H8042 420H300 275H8045 450H300 275H8048 480H300 275H8051 510H300 275H8054 540H300 275H8057 570H300 275H8060 600H300 275H8063 630H300 275H8066 660H300 275H8070 700H300 275H8075 750H300 275H8080 800H300 275H8085 850H300 275H8090 900H300 275H8100 1000H300 275H8110 1100H300 275H8125 1250H300 275H8140 1400H300 275H8170 1700H300 (XH) EXTRA HEAVY* Catalogue Code 2" (51mm) WIDE BELT Belt Catalogue Designation Code Belt Designation Catalogue Code 3" (76mm) WIDE BELT Belt Catalogue Designation Code Belt Designation Catalogue Code 4" (102mm) WIDE BELT Belt Catalogue Designation Code Belt Designation 275X7050 275X7056

275X7063 275X7070 275X7077 275X7084 507XH200 560XH200 630XH200 700XH200 770XH200 840XH200 980XH200 1120XH200 1260XH200 1400XH200 1540XH200 1750XH200 275X8050 275X8056 275X8063 275X8070 275X8077 275X8084 507XH300 560XH300 630XH300 700XH300 770XH300 840XH300 908XH300 1120XH300 1260XH300 1400XH300 1540XH300 1750XH300 275X9050 275X9056 275X9063 275X9070 275X9077 275X9084 507XH400 560XH400 630XH400 700XH400 770XH400 840XH400 980XH400 1120XH400 1260XH400 1400XH400 1540XH400 1750XH400 275X7098 275X7112 275X7126 275X7140 275X7154 275X7175 275X8098 275X8112 275X8126 275X8140 275X8154 275X8175 275X9098 275X9112 275X9126 275X9140 275X9154 275X9175 * MXL, XL, XH and XXH belts available for replacement only – pulleys are not available from stock. FEN01/14 : Drive Design & Maintenance Manual 107 Section : 4 Synchronous BELT drives Timing Pulleys Dimensions Classical Timing Pulley Dimensions - Light (L) Pitch L050 – 1/2" (13mm) WIDE BELTS Catalogue Pulley Pitch Code

Designation dia. 023C0014 14L050 42.45 023C0015 15L050 45.48 023C0016 16L050 48.51 023C0017 17L050 51.54 023C0018 18L050 54.57 023C0019 19L050 57.61 023C0020 20L050 60.64 023C0021 21L050 63.67 023C0022 22L050 66.70 023C0023 23L050 69.73 023C0024 24L050 72.77 023C0025 25L050 75.80 023C0026 26L050 78.83 023C0027 27L050 81.86 023C0028 28L050 84.89 023C0030 30L050 90.96 023C0032 32L050 97.02 023C0036 36L050 109.15 023C0040 40L050 121.28 023C0048 48L050 145.53 023C0060 60L050 181.91 023C0072 72L050 218.30 023C0084 84L050 254.68 023C0096 96L050 291.06 023C0120 120L050 363.83 No. of Teeth 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 30 32 36 40 48 60 72 84 96 120 Bush No. pilot bore pilot bore pilot bore pilot bore 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1610 1610 1610 1610 1610 2012 2012 Max Bore Met. Imp. 3/4 19 7/8 22 25 1 25 1 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 42 15/8 42 15/8 42

15/8 42 15/8 42 15/8 50 2 50 2 Pulley Type 1F 1F 1F 1F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F* 9 9# 9# 9# 9# A F J K L M N 49 52 56 57 60 64 67 70 75 79 79 83 86 86 91 98 103 115 128 151 – – – – – 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 – – – – – – – – – – – – – – – – – – – 120 165 202 238 275 344 – – – – – – – – – – – – – – – – – – – 6.0 3.0 3.0 3.0 6.5 6.5 30 30 30 30 22 22 22 22 22 22 22 22 22 22 22 22 22 22 25 25 25 25 25 32 32 11.0 11.0 11.0 11.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 – 3.0 3.0 3.0 6.5 6.5 32 35 38 38 43 43 48 48 51 54 54 56 60 62 65 70 74 85 97 88 92 92 92 106 106 Catalogue Pulley Pitch Code Designation dia. 023D0014 14L075 42.45 023D0015 15L075 45.48 023D0016 16L075 48.51 023D0017 17L075 51.54 023D0018 18L075 54.57 023D0019 19L075 57.61 023D0020 20L075 60.64 023D0021 21L075 63.67 023D0022 22L075

66.70 023D0023 23L075 69.73 023D0024 24L075 72.77 023D0025 25L075 75.80 023D0026 26L075 78.83 023D0027 27L075 81.86 023D0028 28L075 84.89 023D0030 30L075 90.96 023D0032 32L075 97.02 023D0036 36L075 109.15 023D0040 40L075 121.28 023D0048 48L075 145.53 023D0060 60L075 181.91 023D0072 72L075 218.30 023D0084 84L075 254.68 023D0096 96L075 291.06 023D0120 120L075 363.83 No. of Teeth 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 30 32 36 40 48 60 72 84 96 120 Bush No. pilot bore pilot bore pilot bore pilot bore 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1610 1610 1610 1610 1610 2012 2012 2012 Max Bore Met. Imp. 3/4 19 7/8 22 25 1 25 1 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 28 11/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 50 2 50 2 50 2 Pulley Type 1F 1F 1F 1F 2F 2F 2F 2F 2F 2F 2F 2F 2F 2F 2F 2F 2F 2F 2F 3F* 7 7# 9# 9# 9# A F J K L M N 49 52 56 57 60 64 67 70 75 79 79 83 86 86 91 98 103 115 128 151 – –

– – – 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 – – – – – – – – – – – – – – – – – – – 120 166 202 236 270 343 – – – – 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 0.0 0.0 – 0.0 0.0 3.5 3.5 3.5 37 37 37 37 22 22 22 22 22 22 22 22 22 22 22 22 22 25 25 25 25 25 32 32 32 12.0 12.0 12.0 12.0 – – – – – – – – – – – – – – – – 0.0 0.0 3.5 3.5 3.5 32 35 38 38 – – – – – – – – – – – – – – – 92 92 92 106 106 106 L075 – 3/4" (19mm) WIDE BELTS L100 – 1" (25mm) WIDE BELTS Max Bore Pulley Catalogue Pulley Pitch No. of Bush A F J K L Code Designation dia. Teeth No. Met. Imp Type 3/4 023E0014 14L100 42.45 14 pilot bore 19 1F 49 32 – – 43 7/8 023E0015 15L100 45.48 15 pilot bore 22 1F 52 32 – – 43 023E0016 16L100 48.51 16 pilot bore 25 1 1F 56 32 – – 43 023E0017 17L100 51.54 17 pilot bore 25 1 1F 57 32 – – 43

023E0018 18L100 54.57 18 1108 28 11/8 4F 60 32 38 9.0 22 023E0019 19L100 57.61 19 1108 28 11/8 4F 64 32 38 9.0 22 023E0020 20L100 60.64 20 1108 28 11/8 4F 67 32 45 9.0 22 023E0021 21L100 63.67 21 1108 28 11/8 4F 70 32 45 9.0 22 023E0022 22L100 66.70 22 1108 28 11/8 4F 75 32 48 9.0 22 023E0023 23L100 69.73 23 1108 28 11/8 4F 79 32 52 10.0 22 023E0024 24L100 72.77 24 1108 28 11/8 4F 79 32 52 10.0 22 023E0025 25L100 75.80 25 1108 28 11/8 4F 83 32 54 10.0 22 023E0026 26L100 78.83 26 1108 28 11/8 4F 86 32 60 10.0 22 023E0027 27L100 81.86 27 1108 28 11/8 4F 86 32 60 10.0 22 023E0028 28L100 84.89 28 1108 28 11/8 4F 91 32 65 10.0 22 023E0030 30L100 90.96 30 1210 32 11/4 4F 98 32 71 7.0 25 023E0032 32L100 97.02 32 1210 32 11/4 4F 103 32 75 7.0 25 023E0036 36L100 109.15 36 1610 42 15/8 4F 115 32 86 7.0 25 023E0040 40L100 121.28 40 1610 42 15/8 7F 128 32 96 7.0 25 023E0048 48L100 145.53 48 1610 42 15/8 7F 151 32 110 7.0 25 023E0060 60L100 181.91 60 1610 42 15/8 7 – 32 166 3.5 25 023E0072 72L100

218.30 72 2012 50 2 9# – 32 202 0.0 32 023E0084 84L100 254.68 84 2012 50 2 9# – 32 236 0.0 32 023E0096 96L100 291.06 96 2012 50 2 9# – 32 270 0.0 32 023E0120 120L100 363.83 120 2012 50 2 9# – 32 343 0.0 32 Dimensions in millimetres unless otherwise stated. * These pulleys are recessed to a plate centre under rim diameter J. # These pulleys have spokes instead of plate web centres. Prime functional dimensions are correct at the time of publication. Pulley types and non-functional dimensions may vary. 108 M N 11.0 11.0 11.0 11.0 – – – – – – – – – – – – – – 0.0 0.0 3.5 0.0 0.0 0.0 0.0 32 35 38 38 – – – – – – – – – – – – – – 90 92 92 106 106 106 106 synchronous belt drives Section : 4 Timing Pulleys Dimensions Classical Timing Pulley Dimensions - Heavy (H) Pitch H100– 3/4" (19mm) and 1" (25mm) WIDE BELTS Catalogue Code 023F0018 023F0019 023F0020 023F0021 023F0022 023F0023 023F0024 023F0025 023F0026

023F0027 023F0028 023F0030 023F0032 023F0036 023F0040 023F0048 023F0060 023F0072 023F0084 023F0096 023F0120 Pulley Designation 18H100 19H100 20H100 21H100 22H100 23H100 24H100 25H100 26H100 27H100 28H100 30H100 32H100 36H100 40H100 48H100 60H100 72H100 84H100 96H100 120H100 Pitch dia. 72.77 76.81 80.95 84.89 88.94 92.98 97.02 101.06 105.11 109.15 113.19 121.28 129.36 145.53 161.70 194.04 242.55 291.06 339.57 388.08 485.10 No. of Teeth 18 19 20 21 22 23 24 25 26 27 28 30 32 36 40 48 60 72 84 96 120 Bush No. 1210 1210 1210 1210 1210 1610 1610 1610 1610 1610 1610 1610 1610 1610 1610 2012 2012 2012 2012 2517 2517 Max Bore Met. Imp. 32 11/4 32 11/4 32 11/4 32 11/4 32 11/4 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 50 2 50 2 50 2 50 2 60 21/2 60 21/2 Pulley Type 4F 4F 4F 4F 4F 4F 4F 4F 4F 4F 4F 4F 7F 7F 7F 7F 9 9# 9# 9# 9# No. of Teeth 18 19 20 21 22 23 24 25 26 27 28 30 32 36 40 48 60 72 84 96 120 Bush No. 1210 1210 1210 1210 1210 1610 1610 1610

1610 1610 1610 1610 1610 1610 1610 2012 2012 2012 2012 2517 2517 Max Bore Met. Imp. 32 11/4 32 11/4 32 11/4 32 11/4 32 11/4 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 50 2 50 2 50 2 50 2 60 21/2 60 21/2 Pulley Type 4F 4F 4F 4F 4F 4F 4F 4F 4F 4F 4F 4F 7F 7F 7F 7F 7# 7# 7# 7# 7# Max Bore Met. Imp. 32 11/4 32 11/4 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 42 15/8 50 2 50 2 50 2 60 21/2 60 21/2 60 21/2 60 21/2 60 21/2 60 21/2 Pulley Type 4F 4F 4F 4F 4F 4F 4F 4F 4F 4F 4F 4F 4F 7F 7F 7F 7# 7# 7# 7# 7# A F J 79 83 87 91 95 98 103 106 112 115 120 128 135 151 168 200 –– –– –– –– –– 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 60 60 60 60 60 52 56 60 64 67 70 74 77 82 85 91 98 106 121 138 169 223 270 320 366 462 A F J K L M N 79 83 87 91 95 98 103 106 112 115 120 128 135 151 168 200 – – – – – 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 34 34 34 34 34 52 56 60 64 67 70 74 77

82 85 90 98 106 121 138 152 169 270 318 366 462 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 0.0 1.0 1.0 1.0 5.5 5.5 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 32 32 32 32 45 45 – – – – – – – – – – – – – – – 0.0 0.0 0.0 0.0 5.5 5.5 – – – – – – – – – – – – 80 92 92 106 106 106 106 119 119 A F J K L M N 79 83 87 91 95 98 103 106 112 115 120 128 135 151 168 200 – – – – – 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 46 46 46 46 46 52 56 60 64 67 70 74 77 82 85 91 98 106 121 138 169 223 270 320 366 462 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 13.0 7.0 7.0 7.0 0.5 0.5 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 32 32 32 32 45 45 – – – – – – – – – – – – – – – 0.0 7.0 7.0 7.0 0.5 0.5 – – – – – – – – – – – – 80 92 92 106 106 106 106 119 119 K L M N 33.0 33.0 33.0 33.0 33.0 33.0 33.0 33.0 33.0 33.0 33.0

33.0 26.0 26.0 26.0 13.0 7.5 7.5 7.5 7.5 7.5 25 25 25 25 25 25 25 25 25 25 25 25 32 32 32 45 45 45 45 45 45 – – – – – – – – – – – – – – – 0.0 7.5 7.5 7.5 7.5 7.5 – – – – – – – – – – – – – 102 106 119 119 119 119 119 119 H150– 11/2" (38mm) WIDE BELTS Catalogue Code 023G0018 019 020 021 022 023 024 025 026 027 028 030 032 036 040 048 060 072 084 096 120 Pulley Designation 18H150 19H150 20H150 21H150 22H150 23H150 24H150 25H150 26H150 27H150 28H150 30H150 32H150 36H150 40H150 48H150 60H150 72H150 84H150 96H150 120H150 Pitch dia. 72.77 76.81 80.85 84.89 88.94 92.98 97.02 101.06 105.11 109.15 113.19 121.28 129.36 145.53 161.70 194.04 242.55 291.06 339.57 388.08 485.10 H200– 2" (51mm) WIDE BELTS Catalogue Code 023H0018 023H0019 023H0020 023H0021 023H0022 023H0023 023H0024 023H0025 023H0026 023H0027 023H0028 023H0030 023H0032 023H0036 023H0040 023H0048 023H0060 023H0072 023H0084 023H0096 023H0120 Pulley Designation

18H200 19H200 20H200 21H200 22H200 23H200 24H200 25H200 26H200 27H200 28H200 30H200 32H200 36H200 40H200 48H200 60H200 72H200 84H200 96H200 120H200 Pitch dia. 72.77 76.81 80.85 84.89 88.94 92.98 97.02 101.06 105.11 109.15 113.19 121.28 129.36 145.53 161.70 194.04 242.55 291.06 339.57 388.08 485.10 No. of Teeth 18 19 20 21 22 23 24 25 26 27 28 30 32 36 40 48 60 72 84 96 120 Bush No. 1210 1210 1610 1610 1610 1610 1610 1610 1610 1610 1610 1610 2012 2012 2012 2517 2517 2517 2517 2517 2517 # Dimensions in millimetres unless otherwise stated. These pulleys have spokes instead of plate web centres. Prime functional dimensions are correct at the time of publication. Pulley types and non-functional dimensions may vary. FEN01/14 : Drive Design & Maintenance Manual 109 Section : 4 Synchronous BELT drives Installation Instructions - All Drives Installation Instructions - All Drives INSTALLATION TENSION BELT INSTALLATION Synchronous belt drives operate by positive meshing and do

not require high installed belt tensions. Provision should be made for adjustment of the drive centre distance to allow for installation of the belt around the pulleys without damage, and subsequent pre-tensioning. A belt should never be forced over pulley flanges as internal belt damage will result. For optimum performance, however, belts should be installed with a pre-tension suitable for the envisaged drive duty, derived from the formulae below. Where a range is indicated, the lower value will be suitable for lightly loaded, smooth running drives, whereas drives subject to high shock loads and/or frequent starts should be tensioned to the higher level. Belt pre-tension is usually achieved by drive centre distance extension and checked by applying a setting force F (N) at mid belt span sufficient to deflect the belt a distance d (mm) related to the length of the span S (metres). It is necessary to ensure that the force is applied at right angles to the belt span, and evenly across

the belt width. A Fenner Belt Tension Indicator may be used, in conjunction with a piece of rigid bar laid across the face of the belt at mid-span An electronic, sonic tension indicator is also available. The following tables offer guidance as to the necessary adjustments for installation and also for applying appropriate pre-tension. Centre Distance Allowance (installation on flangeless pulleys, tensioning) mm Tensioning Belt Lenth Installation Allowance (mm) (any drive) Additional Centre Distance Allowance (installation over flanged pulleys) mm Both One pulleys pulley Belt Pitch flnaged flanged (mm) (mm) <1000 1.8 0.8 5mm 14 19 1001 - 1780 2.8 0.8 8mm 22 33 58 1781 - 2540 3.3 1.0 14mm 36 2541- 3300 4.1 1.0 L 25 35 >3300 5.3 1.3 H 32 48 PULLEY ALIGNMENT Misalignment of drive pulleys results in unequal tension across the belt width and extreme edge wear. Pulley alignment should be proved using a straight-edge or laser device, and shafts checked for

parallelism. Misalignment on any synchronous drive should not exceed 1/4O angular or 5mm/ metre centre distance parallel. TORQUE DRIVE PLUS 3 & HTD DRIVES (Deflection – d 20mm/metre span length - S) Calculate the force F from the formulae below. F (max) = kW x 955,000 F (min) = kW x 477,500 (N) d.n d.n where kW = Motor power, or absorbed power if known d = Pitch diameter of either pulley (mm). n = Drive support frameworks must be rigid to avoid flexure causing shaft misalignment under drive forces. Flexure can result in tooth jumping during high torque starts, particularly if misalignment is present. Rev/min of same pulley. TIMING DRIVES (Deflection – d 20 mm/metre span length - S) Use force F from the table below. Belt F (Newtons) L050 2.7 L075 4.3 L100 6.1 H075 11.0 H100 15.6 H150 24.3 H200 33.4 NOTE: Excessive belt tension will reduce belt and bearing lives and may increase drive noise levels. For fixed centre applications tension may be applied by an

idler pulley (see note on Idler Pulleys) or consult your local Authorised Distributor for precise fixed centre dimensions. Drive support frameworks must be rigid to avoid flexure resulting in centre distance reduction and consequent tooth jumping, particularly on high torque starts. BELT CARE Avoid crimping belts. Folding belts such that they are tightly bent, e.g for storage, damages the belt cords and will lead to premature failure. 110 IDLER PULLEYS Grooved idler pulleys can be used on the inside of all synchronous belts. Flat (not crowned) idlers can be used on the outer surface of Classical Timing, HTD and TDP3 belts. Wherever possible, idlers should operate on the slack span of a belt, and arc of contact should be kept to a minimum. Idler pulleys should be of equal or greater diameter than the smaller of the drive pulleys. Spring loaded idler pulleys are not normally recommended. TAPER LOCK Most of the synchronous pulleys/sprockets featured in this section use Taper Lock shaft

fixing. For detailed instructions on the fitting and dismounting of Taper Lock products see Shaft Fixings page 129, or view the on-line video at www.fptgroupcom