Standard No.:	GB/T 27557-2011
English Name:	Rolling bearings - Linear motion rolling bearings - Identification code
Chinese Name:	滚动轴承 直线运动滚动支承 代号方法
Chinese Classification:	J11    Rolling bearing
Professional Classification:	GB    National Standard
ICS Classification:	21.100.20 21.100.20    Rolling bearings 21.100.20
Issued by:	AQSIQ; SAC
Issued on:	2011-11-21
Implemented on:	2012-6-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	164.0
Delivery:	via email in 1 business day

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