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项目 | 符号 | 允许偏差 | 尺
寸 | 公称规格 | (mm) | | 7×0.32 | 0.79×0.32 | 9×0.34 | 9.52×0.34 | 9.52×0.36 |
公称外径 | O.D | 0.05 | 7.0 | 7.94 | 9.0 | 9.52 | 9.52 |
| (mm) | 公称辟厚 | Tav | | 0.32 | 0.32 | 0.34 | 0.36 | 0.36 | | (mm) | 公称内径 | I.D | | 6.16 | 7.032 | 8.14 | 8.52 | 8.52 | | (mm) | 底厚 | TW | 0.03 | 0.27 | 0.254 | 0.28 | 0.30 | 0.30 | | (mm) | 齿高 | HF | 0.02 | 0.15 | 0.2 | 0.16 | 0.20 | 0.20 | | (mm) | 齿宽 | WI | 0.5 | 0.188 | 0.270 | 0.246 | 0.255 | 0.220 | 齿顶角 | β | 10° | 40 | 40 | 44 | 44 | 53 | 螺旋角 | α | 2° | 18 | 18 | 18 | 18 | 18 | 齿数 | N | o | 60 | 50 | 60 | 60 | 60 | 齿型 | | | c | c | c | c | c | 每米重量(克) | (g) | | 62 | 75 | 88 | 90 | 95 | |
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