Standard No.:	GB/T 25767-2010
English Name:	Rolling bearings - Tapered rollers
Chinese Name:	滚动轴承 圆锥滚子
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:	3000 words
Price(USD):	204.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the technical requirements, test methods, inspection rules, marking, packaging and storage of tapered rollers (hereinafter referred to as "rollers"). This standard is applicable to the production, inspection and acceptance of rollers. 2 Normative References The following documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding corrections to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies. GB/T 3203-1982 Specification for Carburizing Steels of Bearings GB/T 4199-2003 Rolling Bearings-Tolerances-Definitions (ISO 1132-1: 2000, MOD) GB/T 4380-2004 Assessment of Departure from Roundness - Two- and Three-point Methods GB/T 6930-2002 Rolling Bearings - Vocabulary (ISO 5593: 1997, IDT) GB/T 7811-2007 Rolling Bearings - Symbols for Quantities (ISO 15241: 2001, IDT) GB/T 8597-2003 Rolling Bearings-Rust Proof Packaging GB/T 18254-2002 High-carbon Chromium Bearing Steel GB/T 24608-2009 Inspection Rules for Rolling Bearings and Commercial Parts JB/T 1255-2001 Specification for Heat-treatment of Rolling Bearing Parts Made from High Carbon Chromium Steel JB/T 6641-2007 Rolling Bearings - Residual Magnetism and Its Assessment Method JB/T 6642-2004 Rolling Bearing Parts-Methods for the Measurement and Assessment of Departure from Roundness and Waviness JB/T 7051-2006 Rolling Bearing Parts-Methods for the Measurement and Assessment of Surface Roughness JB/T 8881-2001 Specifications for Carburizing Heat Treatment of Rolling Bearing Parts

Contents Foreword I 1 Scope 2 Normative References 3 Terms and Definitions 4 Symbols 5 Shape and Dimensions 6 Technical Requirements 7 Test Methods 9 Marking 10 Packaging and Storage Appendix A (Normative) Measurement Method for Deviation from Circular Form