This standard specifies the technical requirements, inspection method, inspection rule, marking and packaging of miniature ball bearings for general purpose with bore diameter of 0.6~10mm and boundary dimensions consistent with GB/T 273.3.
This standard is applicable to the deep groove ball bearings and angular contact ball bearings (including bearings with flanged outer rings) of each tolerance grade and the self-aligning ball bearings of Grades 0, 6 and 5.
2. Normative Reference
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding amending errors in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of the normative document is applicable. For undated references, the latest edition of the normative document applies.
GB/T 273.3-1999 Rolling Bearings - Radial Bearings - Boundary Dimensions - General Plan (eqv ISO 15:1998)
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 Bearings - Tolerances - Part 2: Measuring and Gauging Principles and Methods, MOD)
GB/T 307.3-2005 Rolling Bearings - General Technical Regulations
GB/T 4604-1993 Rolling Bearings - Radial Internal Clearance (eqv ISO 5753:1991)
GB/T 5800-2003 Rolling Bearings - Instrument Precision Bearing (ISO 1224:1984, MOD)
GB/T 7218-1995 Rolling Bearings - Miniature Radial Ball Bearings with Flanged Outer Ring - Boundary Dimensions
GB/T 7811-1999 Rolling Bearings - Symbols for Quantities
GB/T 8597-2003 Rolling Bearings - Rust Proof Packaging
