GB/T 307.1-2005 in English

《GB/T 307.1-2005滚动轴承 向心轴承 公差》由TC98（全国滚动轴承标准化技术委员会）归口，主管部门为中国机械工业联合会
GB/T 307的本部分规定了符合GB/T 273.1-2003、GB/T 273.3-1999和GB/T 7217-2002的向心滚动轴承的外形尺寸（倒角尺寸除外）和旋转精度公差。本部分不适用于某些特殊类型的向心轴承（如冲压外圈滚针轴承）或特殊场合使用的向心轴承（如飞机机架轴承和仪器精密轴承）。这些轴承的公差规定在相应的标准中。倒角尺寸极限规定在GB/T 274-2000中。

1 Scope

This Part of GB/T 307 specifies tolerances for boundary dimensions (except chamfer dimensions) and the running accuracy of radial rolling bearings specified in GB/T 273.1-2003, GB/T 273.3-1999 and GB/T 7217-2002.
This Standard does not apply to certain radial bearings of particular types (e.g., drawn cup needle roller bearings) or for particular fields of application (e.g., airframe bearings and instrument precision bearings). Tolerances for such bearings are given in the relevant Standards.
Chamfer dimension limits are given in GB/T 274-2000.

2 Normative References

The following normative documents contain provisions which, through reference in this text, constitute provisions of this Part of GB/T 307. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.

Foreword I
1 Scope 1
2 Normative References 1
3 Terms and Definitions 2
4 Symbols 2
5 Tolerances 5