This standard specifies the technical requirements, measurement and test methods, inspection rules, marking, rust prevention and packaging of deep groove ball bearings (hereinafter referred to as "bearings") with the bore diameter of 3 mm ~ 120 mm for electric motors for general purposes.
This standard is applicable to the production and inspection of the bearing manufacturer and customer acceptance.
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 272-1993 Rolling Bearing-Identification Code
GB/T 307.1-2005 Rolling Bearings-Radial Bearings-Tolerances(ISO 492: 2002, MOD)
GB/T 307.2-2005 Rolling Bearings-Measuring and Gauging Principles and Methods (ISO 1132-2: 2001，Roiling beatings-Tolerances – Part 2: Measuring and gauging principles and methods, MOD)
GB/T 307.3-2005 Rolling Bearings-General Technical Regulations
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 (ISO2859-1: 1999, IDT)
GB/T 781l-2007 Rolling Bearings-Symbols for Quantities (ISO 1524l: 2001, IDT)
GB/T 8597-2003 Rolling Bearings-Rust Proof Packaging
