GB/T 27557-2011 in English

《GB/T 27557-2011滚动轴承 直线运动滚动支承 代号方法》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。

1 Scope

This standard specifies the compilation method of designations of linear motion rolling bearings (hereinafter referred to as “bearings”).
This standard is applicable to bearings for general purpose.

2 Normative References

The following documents are essential to the application this document. For dated reference, only the dated editions are applicable to this standard. For undated references, the latest edition (including any amendments) is applicable to this standard.
GB/T 16940-1997 Linear Motion Bearings-Linear Motion Ball Bearings-Boundary Dimensions and Tolerances
GB/T 21559.1-2008 Rolling Bearings-Linear Motion Rolling Bearings-Part 1: Dynamic Load Ratings and Rating Life
GB/T 21559.2-2008 Rolling Bearings-Linear Motion Rolling Bearings-Part 2: Rated Static Loads
JB/T 6364-2005 Linear Motion Rolling Bearings-Block Type Recirculating Linear Needle Roller (or Roller) Bearings
JB/T 7359-2007 Linear Motion Rolling Bearings-Linear Needle Roller and Cage Assemblies

Contents
Foreword I
1 Scope
2 Normative References
3 Designation of Linear Motion Rolling Bearings
4 Designation Compilation Rules
5 Designation Examples