Standard No.:	GB/T 25771-2010
English Name:	Rolling bearings - Bearings for railway locomotive
Chinese Name:	滚动轴承 铁路机车轴承
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:	2010-12-23
Implemented on:	2011-6-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	120.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the classification, designation methods, structural types, boundary dimensions, technical requirements, test methods, inspection rules, marking, rustproof packaging, storage and the like of the rolling bearings for railway locomotive (hereinafter referred to as the "bearings"). This standard is applicable to the bearings used under the conditions that the speed per hour is not greater than 160 km/h, and it is used for the production, inspection and acceptance of bearings.

Contents Foreword I 1 Scope 2 Normative References 3 Terms and Definitions 4 Symbols 5 Classification 6 Designation Methods 7 Structural Types 8 Boundary Dimensions 9 Technical Requirements 10 Test Methods 11 Inspection Rules 12 Marking 13 Rustproof Packaging 14 Storage Appendix A (Normative) Boundary Dimensions and Internal Clearance of Rolling Bearings for Railway Locomotive Appendix B (Normative) Assessment Methods and Control Indicators for Cleanliness Appendix C (Informative) Comparison between New and Old Designations of Rolling Bearings for Railway Locomotive