381 Table 61. 2GT Allowable Tension Table: Per 4.0mm of Belt Width (Unit: N) Number of Small Pulley Teeth 12 14 16 18 20 22 24 26 28 30 32 36 40 44 48 50 60 72 Speed of Small Pulley (rpm) Pitch Circle Dia. (mm) 7.64 8.91 10.19 11.46 12.73 14.01 15.28 16.55 17.83 19.10 20.37 22.92 25.46 28.01 30.56 31.83 38.20 45.84 20 56.09 57.27 58.45 59.63 60.80 61.98 63.16 64.33 65.51 66.69 67.86 70.22 72.57 74.92 77.28 78.45 84.34 84.34 40 50.60 51.78 52.96 54.13 55.31 56.49 57.66 58.84 60.02 61.20 62.37 64.73 67.08 69.43 71.79 72.96 78.85 78.85 60 47.39 48.57 49.75 50.92 52.10 53.28 54.45 55.63 56.81 57.98 59.16 61.51 63.87 66.22 68.57 69.75 75.64 75.64 100 43.35 44.52 45.70 46.88 48.05 49.23 50.41 51.58 52.76 53.94 55.11 57.47 59.82 62.17 64.53 65.70 71.59 71.59 200 37.85 39.03 40.21 41.38 42.56 43.74 44.92 46.09 47.27 48.45 49.62 51.98 54.33 56.68 59.04 60.21 66.10 66.10 300 34.64 35.82 37.00 38.17 39.35 40.53 41.70 42.88 44.06 45.23 46.41 48.76 51.12 53.47 55.82 57.00 62.89 62.89 400 32.36 33.54 34.72 35.89 37.07 38.25 39.42 40.60 41.78 42.95 44.13 46.49 48.84 51.19 53.55 54.72 60.61 60.61 500 30.60 31.77 32.95 34.13 35.30 36.48 37.66 38.83 40.01 41.19 42.36 44.72 47.07 49.42 51.78 52.96 58.84 58.84 600 29.15 30.33 31.51 32.68 33.86 35.04 36.21 37.39 38.57 39.74 40.92 43.27 45.63 47.98 50.33 51.51 57.39 57.39 700 27.93 29.11 30.28 31.46 32.64 33.81 34.99 36.17 37.34 38.52 39.70 42.05 44.41 46.76 49.11 50.29 56.17 56.17 800 26.87 28.05 29.23 30.40 31.58 32.76 33.93 35.11 36.29 37.46 38.64 40.99 43.35 45.70 48.06 49.23 55.12 55.12 870 26.21 27.39 28.56 29.74 30.92 32.09 33.27 34.45 35.62 36.80 37.98 40.33 42.68 45.04 47.39 48.57 54.45 54.45 900 25.94 27.12 28.29 29.47 30.65 31.82 33.00 34.18 35.35 36.53 37.71 40.06 42.41 44.77 47.12 48.30 54.18 54.18 1000 25.11 26.28 27.46 28.64 29.81 30.99 32.17 33.34 34.52 35.70 36.87 39.23 41.58 43.93 46.29 47.46 53.35 53.35 1160 23.93 25.11 26.28 27.46 28.64 29.81 30.99 32.17 33.34 34.52 35.70 38.05 40.40 42.76 45.11 46.29 52.17 52.17 1200 23.66 24.84 26.01 27.19 28.37 29.54 30.72 31.90 33.08 34.25 35.43 37.78 40.14 42.49 44.84 46.02 51.90 51.90 1400 22.44 23.62 24.79 25.97 27.15 28.32 29.50 30.68 31.85 33.03 34.21 36.56 38.91 41.27 43.62 44.80 50.68 50.68 1450 22.16 23.34 24.52 25.69 26.87 28.05 29.22 30.40 31.58 32.75 33.93 36.28 38.64 40.99 43.34 44.52 50.40 50.40 1600 21.38 22.56 23.74 24.91 26.09 27.27 28.44 29.62 30.80 31.97 33.15 35.50 37.86 40.21 42.56 43.74 49.62 49.62 1750 20.67 21.85 23.03 24.20 25.38 26.56 27.73 28.91 30.09 31.26 32.44 34.79 37.15 39.50 41.85 43.03 48.92 48.92 1800 20.45 21.63 22.80 23.98 25.16 26.33 27.51 28.69 29.86 31.04 32.22 34.57 36.92 39.28 41.63 42.81 48.69 48.69 2000 19.61 20.79 21.97 23.14 24.32 25.50 26.67 27.85 29.03 30.21 31.38 33.74 36.09 38.44 40.80 41.97 47.86 47.86 2400 18.17 19.35 20.52 21.70 22.88 24.05 25.23 26.41 27.58 28.76 29.94 32.29 34.65 37.00 39.35 40.53 46.41 46.41 2800 16.95 18.13 19.30 20.48 21.66 22.83 24.01 25.19 26.36 27.54 28.72 31.07 33.42 35.78 38.13 39.31 45.19 45.19 3200 15.89 17.07 18.24 19.42 20.60 21.77 22.95 24.13 25.31 26.48 27.66 30.01 32.37 34.72 37.07 38.25 44.13 44.13 3600 14.96 16.13 17.31 18.49 19.67 20.84 22.02 23.20 24.37 25.55 26.73 29.08 31.43 33.79 36.14 37.32 43.20 43.20 4000 14.12 15.30 16.48 17.65 18.83 20.01 21.18 22.36 23.54 24.71 25.89 28.24 30.60 32.95 35.31 36.48 42.37 42.37 5000 12.36 13.53 14.71 15.89 17.06 18.24 19.42 20.59 21.77 22.95 24.12 26.48 28.83 31.18 33.54 34.71 40.60 40.60 6000 10.91 12.09 13.26 14.44 15.62 16.80 17.97 19.15 20.33 21.50 22.68 25.03 27.39 29.74 32.09 33.27 39.15 39.15 7000 9.69 10.87 12.04 13.22 14.40 15.57 16.75 17.93 19.10 20.28 21.46 23.81 26.17 28.52 30.87 32.05 37.93 37.93 8000 8.63 9.81 10.99 12.16 13.34 14.52 15.69 16.87 18.05 19.22 20.40 22.75 25.11 27.46 29.81 30.99 36.88 36.88 10000 6.86 8.04 9.22 10.40 11.57 12.75 13.93 15.10 16.28 17.46 18.63 20.99 23.34 25.69 28.05 29.22 35.11 35.11 12000 5.42 6.60 7.77 8.95 10.13 11.30 12.48 13.66 14.83 16.01 17.19 19.54 21.90 24.25 26.60 27.78 33.66 33.66 14000 4.20 5.38 6.55 7.73 8.91 10.08 11.26 12.44 13.61 14.79 15.97 18.32 20.67 23.03 25.38 26.56 32.44 32.44 * Try to avoid use of belts within the range enclosed with . Otherwise, the durable time might be shortened. * The above table is for 4.0mm of belt width. When the desired belt has the other width, multiply the value on the above table by the relevant width correction factor Kb provided on the Table 29. Table 62. 3GT Allowable Tension Table: Per 6.0mm of Belt Width (Unit: N) Number of Small Pulley Teeth 12 14 16 18 20 22 24 26 28 30 32 36 40 48 54 60 72 80 Speed of Small Pulley (rpm) Pitch Circle Dia. (mm) 11.46 13.37 15.28 17.19 19.10 21.01 22.92 24.83 26.74 28.65 30.56 34.38 38.20 45.84 51.57 57.30 68.75 76.39 20 167.63 179.89 188.72 195.58 200.00 204.41 207.10 209.80 211.71 213.63 214.66 216.67 217.87 218.78 219.08 219.05 218.33 217.65 40 149.92 162.18 171.00 177.87 182.28 186.70 189.39 192.09 194.00 195.91 196.94 198.95 200.16 201.07 201.37 201.34 200.62 199.93 60 139.56 151.82 160.64 167.51 171.92 176.33 179.03 181.73 183.64 185.55 186.58 188.59 189.80 190.71 191.00 190.98 190.26 189.57 100 126.51 138.76 147.59 154.45 158.87 163.28 165.98 168.67 170.59 172.50 173.53 175.54 176.74 177.66 177.95 177.92 177.20 176.52 200 108.79 121.05 129.88 136.74 141.15 145.57 148.26 150.96 152.87 154.79 155.81 157.82 159.03 159.94 160.23 160.20 159.49 158.80 300 98.43 110.69 119.52 126.38 130.79 135.21 137.90 140.60 142.51 144.42 145.45 147.46 148.67 149.58 149.87 149.84 149.12 148.43 400 91.08 103.34 112.16 119.03 123.44 127.85 130.55 133.25 135.16 137.07 138.10 140.11 141.31 142.22 142.51 142.48 141.75 141.06 500 85.38 97.64 106.46 113.32 117.74 122.15 124.85 127.54 129.45 131.36 132.39 134.40 135.60 136.51 136.80 136.76 136.03 135.33 600 80.72 92.98 101.80 108.66 113.08 117.49 120.18 122.88 124.79 126.70 127.73 129.74 130.94 131.84 132.13 132.09 131.35 130.65 700 76.78 89.04 97.86 104.72 109.14 113.55 116.24 118.94 120.85 122.76 123.79 125.79 126.99 127.89 128.17 128.13 127.39 126.68 800 73.36 85.62 94.45 101.31 105.72 110.13 112.83 115.52 117.43 119.34 120.37 122.37 123.57 124.47 124.75 124.70 123.95 123.23 870 71.22 83.48 92.30 99.16 103.58 107.99 110.68 113.37 115.28 117.19 118.22 120.22 121.42 122.31 122.59 122.54 121.78 121.06 900 70.35 82.61 91.44 98.30 102.71 107.12 109.81 112.51 114.42 116.33 117.35 119.35 120.55 121.44 121.72 121.67 120.91 120.19 1000 67.66 79.92 88.74 95.60 100.01 104.42 107.12 109.81 111.72 113.63 114.65 116.65 117.85 118.73 119.01 118.95 118.18 117.45 1160 63.87 76.12 84.95 91.81 96.22 100.62 103.32 106.01 107.92 109.82 110.85 112.84 114.04 114.91 115.18 115.12 114.32 113.58 1200 63.00 75.26 84.08 90.94 95.35 99.76 102.45 105.14 107.05 108.95 109.98 111.97 113.16 114.04 114.30 114.24 113.44 112.69 1400 59.06 71.31 80.13 86.99 91.40 95.81 98.50 101.19 103.09 105.00 106.02 108.01 109.19 110.06 110.31 110.23 109.40 108.63 1450 58.16 70.41 79.24 86.10 90.50 94.91 97.60 100.29 102.19 104.10 105.12 107.11 108.29 109.15 109.40 109.31 108.48 107.70 1600 55.64 67.90 76.72 83.57 87.98 92.39 95.07 97.76 99.66 101.57 102.58 104.57 105.75 106.59 106.83 106.74 105.88 105.08 1750 53.35 65.60 74.42 81.28 85.68 90.09 92.77 95.46 97.36 99.26 100.28 102.26 103.43 104.26 104.49 104.38 103.49 102.67 1800 52.63 64.88 73.70 80.56 84.96 89.36 92.05 94.74 96.64 98.53 99.55 101.53 102.70 103.53 103.75 103.64 102.74 101.91 2000 49.93 62.18 71.00 77.86 82.26 86.66 89.34 92.02 93.92 95.82 96.83 98.80 99.96 100.77 100.98 100.85 99.91 99.05 2400 45.26 57.51 66.33 73.18 77.57 81.97 84.65 87.32 89.21 91.10 92.10 94.06 95.20 95.97 96.14 95.96 94.92 93.98 2800 43.40 53.56 62.37 69.21 73.60 77.99 80.66 83.33 85.21 87.09 88.09 90.02 91.14 91.86 91.98 91.76 90.59 89.56 3200 42.08 50.13 58.93 65.77 70.16 74.54 77.20 79.86 81.73 83.60 84.59 86.50 87.59 88.25 88.31 88.03 86.73 85.60 3600 40.94 47.10 55.90 62.73 67.11 71.48 74.14 76.79 78.65 80.51 81.48 83.36 84.43 85.01 85.02 84.67 83.21 81.96 4000 39.95 44.39 53.18 60.00 64.37 68.74 71.38 74.02 75.87 77.72 78.67 80.53 81.56 82.07 82.01 81.58 79.96 78.57 5000 37.92 38.62 47.39 54.20 58.54 62.88 65.49 68.10 69.91 71.72 72.64 74.41 75.34 75.62 75.36 74.71 72.57 70.79 6000 36.32 36.74 42.63 49.41 53.72 58.03 60.60 63.17 64.94 66.71 67.58 69.23 70.05 70.05 69.55 68.63 65.86 63.60 7000 35.00 35.36 38.57 45.32 49.60 53.86 56.40 58.92 60.64 62.35 63.16 64.69 65.36 65.03 64.24 63.01 59.50 56.66 8000 33.88 34.19 35.02 41.73 45.97 50.19 52.67 55.14 56.80 58.45 59.19 60.58 61.08 60.37 59.26 57.65 53.28 49.80 10000 32.03 32.24 32.41 35.61 39.75 43.86 46.22 48.56 50.08 51.58 52.16 53.19 53.31 51.68 49.77 47.28 40.86 35.80 12000 30.52 30.63 30.69 30.70 34.46 38.43 40.65 42.83 44.18 45.49 45.88 46.48 46.11 43.37 40.50 36.92 27.99 21.00 14000 29.22 29.23 29.17 29.06 29.77 33.59 35.64 37.63 38.78 39.87 40.03 40.12 39.18 35.12 31.10 26.24 - - * Try to avoid use of belts within the range enclosed with . Otherwise, the durable time might be shortened. * The above table is for 6.0mm of belt width. When the desired belt has the other width, multiply the value on the above table by the relevant width correction factor Kb provided on the Table 29. Timing Belt Selection of Transmission Timing Belts 13
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