Standard No.:	JB/T 8881-2001
English Name:	Specifications for Carburizing Heat Treatment of Rolling Bearing Parts
Chinese Name:	滚动轴承零件渗碳热处理技术条件
Professional Classification:	JB    Professional Standard - Machinery
Issued by:	CSBTS
Issued on:	2001-5-23
Implemented on:	2001-10-1
Status:	superseded
Superseded by:	JB/T 8881-2011 Rolling bearings－Carburizing heat-treatment for parts－Specifications
Superseded on:	2012-4-1
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	100.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the technical requirements for carburizing bearing steel rolling bearing parts such as G20CrMo(A), G20CrlNiMo(A), G20CrNi2Mo(A), G20Cr2Ni4(A), G 10CrlNi3Mo(A) and G20Cr2Mn2Mo(A) in accordance with GB/T 3203 after forging heat treatment, carburizing, high tempering, quenching and tempering, and the inspection procedure for effective carburizing hardening depth measurement, hardness, microstructure, surface crack, etc. This standard is applicable to carburizing heat treatment quality inspection on rolling bearing parts made of above-mentioned carburizing bearing steel and of low carbon alloy steel meeting the requirements of this standard. For the bearing parts with special requirements, the carburizing heat treatment quality shall be in accordance with product drawings and relevant technical specifications.

Contents 1 Scope 2 Normative References 3 Technical Requirements 4 Measurement, Inspection and Evaluation Methods Appendix A (Normative) Measurement Method for Effective Carburizing Hardening Depth Appendix B (Normative) Visible Dye Penetrant Inspection Procedure Appendix C (Normative) Allowable Deformation Amount of Carburizing Bearing Ring