Standard No.:	JB/T 8721-2010
English Name:	Rolling bearings-Magneto ball bearings
Chinese Name:	滚动轴承 磁电机球轴承
Chinese Classification:	J11    Rolling bearing
Professional Classification:	JB    Professional Standard - Machinery
ICS Classification:	21.100.20 21.100.20    Rolling bearings 21.100.20
Source Content Issued by:	State Economic and Trade Commission
Issued on:	2010-2-11
Implemented on:	2010-7-1
Status:	abolished
Abolished on:	2024-07-11
Superseding:	JB/T 8721-1998 Rolling bearings. Magneto ball bearings
Target Language:	English
File Format:	PDF
Word Count:	2000 words
Translation Price(USD):	204.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the structural type, identification code, boundary dimensions and technical conditions of ball bearings (hereinafter referred to as bearing) for single-unit magneto. This standard is applicable to production, gauging, user selection, and acceptance of magneto ball bearings. 2 Normative References The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction 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

Contents Foreword I 1 Scope 2 Normative References 3 Terms and Definitions 4 Symbols 5 Identification Code 6 Designation Example 7 Boundary Dimensions 8 Technical Requirements 9 Measurement Method 10 Gauging Rules 11 Marking 12 Rustproof Packaging