Standard No.:	JB/T 8876-2010
English Name:	Rolling bearings-Cast housings for insert bearings-Specifications
Chinese Name:	滚动轴承 外球面球轴承铸造座 技术条件
Chinese Classification:	J11    Rolling bearing
Professional Classification:	JB    Professional Standard - Machinery
ICS Classification:	21.100.20 21.100.20    Rolling bearings 21.100.20
Issued by:	Ministry of Industry and Information Technology
Issued on:	2010-02-11
Implemented on:	2010-7-1
Status:	valid
Superseding:	JB/T 8876-2000 Rolling bearings ― Cast housings for insert bearings ― Specifications
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	509.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the technical requirements, measurement methods, inspection rules, marking and packaging of cast housings for insert bearings. This standard is applicable to the cast housings whose boundary dimensions meeting the requirements of GB/T 7809 and JB/T 5302. 2 Normative References The following standards contain provisions which, through reference in this text, 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 275-1993 Shaft and Housing Fits for Rolling Bearings GB/T 1184-1996 Geometrical Tolerancing-Geometrical Tolerance for Features without Individual Tolerance Indications (eqv ISO 2768-2: 1989) GB/T 2828.1-2003 Sampling Procedures for Inspection by Attributes-Part 1: Sampling Schemes Indexed by Acceptance Quality Limit (AQL) for Lot-by-lot Inspection (ISO 2859-1: 1999, IDT) GB/T 4199-2003 Rolling bearings-Tolerances-Definitions (IS0 1132-1: 2000，Rolling bearings-Tolerances-Part1: Terms and definitions, MOD) GB/T 6930-2002 Rolling Bearings-Vocabulary (ISO 5593: 1997, IDT) GB/T 7809-1995 Rolling Bearings- Housings for Insert Bearing-Boundary Dimensions(eqv ISO 3228: 1993) GB/T 8597-2003 Rolling Bearings-Rust Proof Packaging GB/T 9439-1988 Grey Iron Castings JB/T 5302-2002 Housings for Insert Bearings-Supplementary Structure-Boundary Dimensions

Contents Foreword I 1 Scope 2 Normative References 3 Terms and Definitions 4 Symbols 4.1 Plummer Block Housing 4.2 Flanged Housing 4.3 Take-up Housing 4.4 Annular Housing 5 Technical Requirements 5.1 Materials 5.2 Tolerance 5.3 Surface Roughness 5.4 Requirements for Casting 5.5 Others 6 Measurement Methods 7 Inspection Rules 8 Marking 9 Packaging, Storage and Transportation Appendix A (Normative) Measurement Methods A.1 Measurement of Tolerance A.2 Measurement of Surface Roughness