ASME B18.25.3M-1998
方头和长方头键和键槽:大于基本尺寸的宽度公差和偏差
Square and Rectangular Keys and Keyways: Width Tolerances and Deviations Greater than Basic Size
- 标准号
- ASME B18.25.3M-1998
- 发布
- 1999年
- 发布单位
- 美国机械工程师协会
- 替代标准
- ASME B18.25.3M-1998(R2003)
- 当前最新
- ASME B18.25.3M-2008
- 引用标准
- ANSI B18.12 ASME B18.25.1M ISO 2491:1974 ISO 286-1:1988 ISO 286-2:1988 ISO R773:1969
- 适用范围
- 1.1.1 This Standard covers requirements for squareand rectangular parallel keys and keyways intended forboth alignment of shafts and hubs, and transmittingtorque between shafts and hubs. 1.1.2 Keys covered by this Standard have a relativelyloose width tolerance. All width tolerances arepositive. Keys with minus width tolerances and a smallertolerance range are covered by ASME B 18.25.lM. 1.1.3 The inclusion of dimensional data in thisStandard is not intended to imply that all sizes describedare production stock items. Consumers should consultwith suppliers concerning lists of stock items. 1.1.1 本标准涵盖了用于轴和轮毂对中以及在轴和轮毂之间传递扭矩的方形和矩形平行键和键槽的要求。 1.1.2 本标准涵盖的密钥具有相对宽松的宽度公差。所有宽度公差均为正。具有负宽度公差和较小公差范围的键由 ASME B 18.25.lM 涵盖。 1.1.3 本标准中包含尺寸数据并不意味着所有尺寸都描述了生产库存项目。消费者应就库存物品清单向供应商咨询。