1 Scope
This standard specifies technical requirements, measuring and test methods, inspection rules and marking and packaging of sealed deep groove ball bearing for automotive alternator (hereinafter referred to as "bearing").
This standard is applicable to the production inspection and user acceptance of alternator bearing for automotive.
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 corrigenda), 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 these documents is applicable. For undated references, the latest edition of the normative document applies.
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 4604-1993 Rolling Bearings - Radial Internal Clearance (eqv ISO 5753: 1991)
GB/T 8597-2003 Rolling Bearings - Rust Proof Packaging
GB/T 18254-2002 High-carbon Chromium Bearing Steel
JB/T 1255-2001 Specification for Heat-treatment of Rolling Bearing Parts Made from High Carbon Chromium Steel
JB/T 3573-2004 Rolling Bearings - Methods for the Measurement of Radial Internal Clearance
JB/T 3574-1997 Rolling Bearings - Marking for Products
JB/T 5313-2001 Rolling Bearing - Measuring Methods for Vibration (Velocity)
JB/T 5314-2002 Rolling Bearings-Measuring Methods for Vibration (Acceleration)
JB/T 6639-2004 Rolling Bearing Parts - Skeleton Acrylonitrile-butadiene Copolymers Seal - Specifications
JB/T 7047-2006 Rolling Bearings - Specifications of Vibration (Acceleration) for Deep Groove Ball Bearings
JB/T 7051-2006 Rolling Bearing Parts - Methods for the Measurement and Assessment of Surface Roughness
JB/T 7752-2005 Rolling Bearings - Sealed Deep Groove Ball Bearings - Specifications
JB/T 8571-1997 Rolling Bearings - Sealed Deep Groove Ball Bearings - Performance Test Rule of Dustproofing, Grease Leakage and Temperature Rise
JB/T 8921-1999 Rolling Bearings and Commercial Parts - Inspection Rules
JB/T 10187-2000 Rolling Bearings - Deep Groove Ball Bearing Vibration (Velocity) - Specifications
JB/T 10336-2002 Rolling Bearings and Parts - Supplementary Specifications
JB/T 10337-2002 Rolling Bearing Parts - Pressing Cage - Specifications
Contents
Foreword II
1 Scope
2 Normative References
3 Technical Requirements
3.1 Materials and Heat Treatment of Ring and Rolling Element
3.2 Cage
3.3 Seal Ring
3.4 Tolerance
3.5 Surface Roughness
3.6 Clearance
3.7 Vibration
3.8 Lubrication and Sealing
3.9 Other
4 Measuring and Test Methods
4.1 Tolerance
4.2 Vibration
4.3 Surface Roughness
4.4 Clearance
4.5 Sealing Performance Test
4.6 Salt Bath Test
4.7 Temperature Change Test of Bearing
4.8 Overspeed Test
4.9 Durability Test
5 Inspection Rules
5.1 Delivery Inspection
5.2 Type Inspection
6 Marking and Packaging
Table 1 Cycle Period of Durability Test
Table 2 Cycle Period of Urgent Speed Variation Test
Table 3 Conventional Random Inspection Items for Delivery Inspection of the Bearing
