This standard specifies the designation method, boundary dimension and technical conditions of the metric series angular contact thrust ball bearings used for supporting the machine tool screws (hereinafter referred to as "bearings").
This standard is applicable to the production and inspection of the bearing manufacturers and the type selection and acceptance of the users.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding corrections to), 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 editions of these documents are applicable. For undated references, the latest edition of the normative documents 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, MOD)
GB/T 307.3-2005 Rolling Bearings - General Technical Regulations
GB/T 4199-2003 Rolling Bearings - Tolerances - Definitions (ISO 1132-1: 2000, MOD)
GB/T 8597-2003 Rolling Bearings-Rust Proof Packaging
