BS 978-1-1968 标准详情
- 标准号:BS 978-1-1968
- 中文标题:小节距齿轮规范.第1部分:渐开线直齿和斜齿齿轮
- 英文标题:Specification for fine pitch gears - Involute spur and helical gears
- 标准类别:英国标准
- 发布日期:1968-01-31
Gears of pitch range greater than 20, up to 200 diametral pitch. Standard pitches; two basic racks (one with backlash allowance); modification of addendum and centre distance to suit various conditions. Four grades of accuracy with elemental and dual
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