PolyChain® GT Timing Belts - Walther Flender

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Walther Flender Gruppe PolyChain ® GT Timing Belts PAGE 16 Storage & maintenance PolyChain® timing belts require no special maintenance. During the wear-in period of heavy-duty drive systems there may be some reduction in the belt tension; in this case, it is necessary to retighten the belts only once with 50 % of the original initial tension. When storing belts, they should never be kinked or folded tightly, because this can damage the tensile members. Therefore, we recommend that timing belts be stored in the original package until needed; during storage, belts should be protected from extreme temperatures, humidity and UV radiation. Clamping elements For secure fastening of the timing belt pulley to the shaft, you can use the conventional feather key connection or any number of frictionally engaged, removable clamping elements for all standard bore dimensions. In addition to the TL (TaperLock®) bushes used primarily for standard pulleys, we offer an extensive line of cylindrical inner and outer clamping sets, which are especially suitable to fulfil requirements for optimal true running properties. Please note the required minimum hub and minimum wall thicknesses to ensure reliable use of the clamping sets; please contact us before using aluminum pulleys. Further information on our clamping sets can be found starting on page 33. Advantages of the positive locking cylindrical clamping elements: – Easy mounting and removal Mounting and removal by tightening or loosening the clamping screws using conventional tools. A precise torque can be achieved by using a torque wrench. Oil the clamping set lightly when mounting it. Do not use oil containing molybdenum disulfide and do not use grease. – Backlash-free connection The clamping sets provide a positive-locking, backlash-free connection that can be released at any time. – Large machining tolerances The following fitting combinations are recommended: Tolerances in the shaft diameter: h 7/h 9 Tolerances in the hub bore diameter: H 7/H 9 Surface roughness ≤ RZ 16 The runout error is between 0.02 and 0.04 mm, depending on the model; all clamping elements listed here are self-centring. – High fatigue strength No weakening of the shaft and pulley bore by keyways. – Easy adjustment Since no profile end mating is necessary, the components can be fastened at a precise angle in any required position. – Overload protection If the maximum torque is exceeded, slippage of the clamping set prevents damage to the connected parts. Repeated slipping should be avoided. – Economical connection An economical shaft/hub connection, due to ease of manufacturing the smooth cylindrical shaft and bore fit.
Walther Flender Gruppe PolyChain ® GT Timing Belts PAGE 17 Technical data Power output values & belt lengths Timing belt pitch PC - 8MGT and PC - 8MGT Carbon Calculation of the dimensions and design of belt drive units can be based on the motor side (motor power output) and on the load side (load collectives). Both calculations – depending on the existing safety factors, desired service life or any load- side efficiency losses – can result in designs for drive systems with Maximum permissible tangential loads The values listed in the following tables represent the operationally useable tangential loads. The listed values apply to quasistatic loads, i.e. for low speed ranges (n ≤ 100 rpm) with the use of timing belt pulleys with at least 34 teeth. PolyChain® GT2 Belt width (mm) 12 21 36 62 Fzul (N) 2012 3521 6037 10397 Power output in kW / 12 mm belt width Note: The following power output data was obtained in extensive series of tests on the basis of defined service life values and includes safety factors that were defined internally beforehand to achieve the corresponding service life. Therefore, the power PolyChain® GT2 Speed of the small pulley different overall widths. In addition to the load value calculation, therefore, we also recommend that you use the following power output table to compare the actual tangential loads with the maximum permissible loads. The initial tensions for mounting of the belts are already included in the power output values and do not have to be subtracted from the listed values. PolyChain® GT Carbon Power output of the small timing belt pulley Belt width (mm) 12 21 36 62 Fzul (N) 2404 4208 7213 12431 output data cannot be compared directly with data of other manufacturers; if you have any questions, please contact our application engineers. 22 25 28 30 32 34 36 38 40 45 48 50 56 60 64 75 80 56.02 63.66 71.30 76.39 81.49 86.58 91.67 96.77 101.86 114.59 122.23 127.32 142.60 152.79 162.97 190.99 203.72 10 0.10 0.12 0.14 0.15 0.16 0.17 0.18 0.19 0.20 0.23 0.24 0.25 0.29 0.31 0.33 0.39 0.41 20 0.16 0.18 0.21 0.23 0.24 0.26 0.28 0.29 0.31 0.35 0.38 0.40 0.45 0.48 0.51 0.60 0.64 40 0.25 0.30 0.34 0.37 0.40 0.43 0.46 0.48 0.51 0.58 0.63 0.66 0.74 0.80 0.85 1.00 1.07 60 0.34 0.40 0.46 0.50 0.54 0.58 0.62 0.66 0.70 0.80 0.86 0.90 1.02 1.09 1.17 1.38 1.48 100 0.51 0.60 0.70 0.76 0.82 0.88 0.94 1.00 1.07 1.22 1.31 1.37 1.54 1.66 1.78 2.10 2.25 200 0.90 1.07 1.24 1.35 1.47 1.58 1.69 1.80 1.91 2.19 2.35 2.46 2.78 3.00 3.21 3.79 4.05 300 1.26 1.51 1.75 1.91 2.07 2.23 2.39 2.55 2.71 3.10 3.33 3.49 3.95 4.26 4.56 5.39 5.76 400 1.61 1.92 2.24 2.45 2.66 2.86 3.07 3.27 3.48 3.98 4.28 4.48 5.08 5.47 5.87 6.93 7.41 500 1.94 2.33 2.71 2.97 3.22 3.47 3.72 3.97 4.22 4.84 5.21 5.45 6.18 6.66 7.13 8.43 9.02 600 2.26 2.72 3.17 3.47 3.77 4.07 4.36 4.66 4.95 5.68 6.11 6.39 7.25 7.81 8.37 9.90 10.58 700 2.58 3.11 3.63 3.97 4.31 4.65 4.99 5.33 5.66 6.50 6.99 7.32 8.30 8.94 9.59 11.33 12.12 730 2.67 3.22 3.76 4.12 4.47 4.83 5.18 5.53 5.87 6.74 7.25 7.59 8.61 9.28 9.95 11.76 12.58 800 2.89 3.48 4.07 4.46 4.84 5.23 5.61 5.99 6.36 7.30 7.86 8.23 9.33 10.06 10.78 12.75 13.63 900 3.19 3.85 4.50 4.93 5.36 5.79 6.21 6.63 7.05 8.09 8.71 9.12 10.35 11.15 11.96 14.13 15.11 1,000 3.49 4.22 4.93 5.41 5.88 6.34 6.81 7.27 7.73 8.88 9.56 10.01 11.35 12.23 13.11 15.50 16.58 1,200 4.07 4.93 5.77 6.33 6.88 7.43 7.98 8.53 9.07 10.41 11.21 11.74 13.31 14.35 15.38 18.18 19.44 1,400 4.64 5.62 6.59 7.23 7.86 8.50 9.12 9.75 10.37 11.91 12.82 13.43 15.23 16.42 17.60 20.79 22.22 1,460 4.81 5.82 6.83 7.49 8.15 8.81 9.46 10.11 10.76 12.35 13.30 13.93 15.80 17.03 18.25 21.56 23.04 1,600 5.19 6.30 7.39 8.11 8.83 9.54 10.24 10.95 11.65 13.38 14.41 15.09 17.11 18.44 19.76 23.34 24.94 1,800 5.73 6.96 8.17 8.97 9.77 10.56 11.34 12.12 12.90 14.82 15.96 16.71 18.95 20.42 21.88 25.83 27.58 2,000 6.27 7.61 8.94 9.82 10.69 11.56 12.42 13.28 14.13 16.23 17.48 18.30 20.75 22.36 23.96 28.25 30.16 2,400 7.30 8.88 10.44 11.48 12.50 13.52 14.53 15.53 16.52 18.98 20.44 21.40 24.25 26.13 27.97 32.93 35.13 2,800 8.29 10.11 11.90 13.08 14.25 15.41 16.57 17.71 18.85 21.65 23.30 24.39 27.63 29.74 31.82 37.38 39.82 2,880 8.49 10.35 12.19 13.40 14.60 15.79 16.97 18.14 19.30 22.17 23.86 24.98 28.28 30.44 32.57 38.24 40.73 3,200 9.26 11.30 13.31 14.64 15.95 17.26 18.55 19.83 21.10 24.22 26.07 27.28 30.87 33.20 35.50 41.58 3,500 9.97 12.18 14.35 15.78 17.20 18.60 20.00 21.38 22.74 26.10 28.08 29.38 33.21 35.70 38.14 4,000 11.11 13.59 16.03 17.63 19.22 20.79 22.34 23.88 25.40 29.12 31.31 32.75 36.96 39.68 4,500 12.22 14.97 17.66 19.43 21.17 22.90 24.60 26.29 27.95 32.02 34.39 35.95 5,000 13.30 16.30 19.23 21.16 23.06 24.93 26.78 28.60 30.40 34.78 37.32 38.98 5,500 14.34 17.58 20.76 22.83 24.88 26.89 28.87 30.83 32.74 37.40 Max. power output = (Table output + additional output) x length factor x width factor
Page 1 and 2: THE POWER OF [E]MOTION PolyChain®
Page 3 and 4: Walther Flender Gruppe PolyChain ®
Page 7 and 8: Walther Flender Gruppe PolyChain Pa
Page 15: Walther Flender Gruppe PolyChain ®
Page 33 and 34: Clamping sets
Page 35 and 36: Walther Flender Gruppe Clamping set
Page 47 and 48: Notizen

PolyChain® GT Timing Belts - Walther Flender

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