Machinery's Handbook, 31st Edition
Double V-Belts
2587
Table 17. Allowable Tight Side Tension for a BB Section
Sheave Effective Diameter (in.)
Belt Speed (fpm)
5.0 81 69 61 56 52 48 45 42 39 36 34 31 29 26 23 21 18 15 12
5.5 93 81 74 68 64 60 57 54 51 49 46 43 41 38 35 33 30 27 24 22 19 16 13
6.0 103 91 84
6.5 111 99 92
7.0 119 107 99
7.5 125 113 106 101 96 93 89
8.0 130 118 111 106 102 98 95
8.5 135 123 116 111 107 103 100
9.0 140 128 121 115 111 107 104 101 98 96 93
200 400 600 800
78 74 71 67 64 61 59 56 53 51 48 45 43 40 37 35 32 29 26 23 20 16 13
87 83 79 76 73 70 67 64 62 59 57 54 51 49 46 43 40 37 34 31 28 25 22 18 15 11
94 90 86 83 80 77 74 72 69 67 64 61 59 56 53 50 47 45 42 39 35 32 29 26 22 19
1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 3800 4000 4200 4400 4600 4800 5000 5200 5400 5600
86 84 81 78 75 73 70 68 65 62 59 57 54 51 48 45 42 39 35 32 29 25
92 89 86 84 81 78 76 73 70 68 65 62 59 56 53 50 47 44 41 38 34 31
97 94 91 89 86 83 81 78 75 73 70 67 64 61 58 55 52 49 46 42 39 36
90 88 85 82 80 77 74 71 69 66 63 60 57 53 50 47 43
9 7 4 1
… 10 … 6 … 3
… … 10 … … 6 … … 3
5800 40 The allowable tight side tension must be evaluated for each sheave in the system (see Step 14). Values must be corrected by K f from Table 20. Table 18. Allowable Tight Side Tension for a CC Section Belt Speed (fpm) Sheave Effective Diameter (in.) 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 200 121 158 186 207 228 244 257 268 278 400 99 135 164 187 206 221 234 246 256 600 85 122 151 173 192 208 221 232 242 800 75 112 141 164 182 198 211 222 232 1000 67 104 133 155 174 190 203 214 224 1200 60 97 126 149 167 183 196 207 217 1400 54 91 120 142 161 177 190 201 211 1600 48 85 114 137 155 171 184 196 205 1800 43 80 108 131 150 166 179 190 200 2000 38 75 103 126 145 160 174 185 195 2200 33 70 98 121 140 155 169 180 190 2400 28 65 93 116 135 150 164 175 185 2600 23 60 88 111 130 145 159 170 180 2800 18 55 83 106 125 140 154 165 175 3000 13 50 78 101 120 135 149 160 170 3200 8 45 73 96 115 130 144 155 165 3400 3 39 68 91 110 125 138 150 160 3600 … 34 63 86 104 120 133 145 154 3800 … 29 58 80 99 115 128 139 149 4000 … 24 52 75 94 109 123 134 144 4200 … 18 47 70 88 104 117 128 138 4400 … 12 41 64 83 98 112 123 133 4600 … 7 35 58 77 93 106 117 127 4800 … 1 29 52 71 87 100 111 121 5000 … … 23 46 65 81 94 105 115 5200 … … 17 40 59 75 88 99 109 5400 … … 11 34 53 68 81 93 103 5600 … … 5 27 46 62 75 86 96 5800 … … … 21 40 55 68 80 90 The allowable tight side tension must be evaluated for each sheave in the system (see Step 14). Values must be corrected by K f from Table 20.
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