1 Scope
This standard specifies the technical requirements, measurement methods, inspection rules, marking, rust prevention and packaging of sleeve type recirculating ball linear ball bearings (hereinafter referred to as "bearings") with ball set bore diameter of 4 mm ~150 mm.
This standard is applicable to the production, inspection and customer acceptance of sleeve type recirculating ball linear ball bearings.
2 Normative References
The following documents contain provisions which, through reference in this standard, 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 307.3-2005 Rolling Bearings-General Technical Regulations
GB/T 2828.1-2003 Sampling Procedures for Inspection by Attributea – Part 1: Sampling Schemes Indexed by Acceptance Quality Limit (AQL) for Lot-by-lot Inspection (ISO 2859-1:1999; IDT)
GB/T 4199-2003 Rolling Bearings-Tolerances-Definitions (ISO 1132-1: 2000, Rolling bearings-Tolerances-Part 1: Terms and definitions, MOD)
GB/T 8597-2003 Rolling Bearings-Rust Proof Packaging
GB/T 16940-1997 Linear Motion Bearings-Linear Motion Ball Bearings-Boundary Dimensions and Tolerances (eqv ISO 10285:1992)
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 3574-1997 Rolling Bearings-Marking for Products
JB/T 6641-2007 Rolling Bearings-Residual Magnetism and Its Assessment Method
JB/T 7051-2006 Rolling Bearing Parts-Methods for the Measurement and Assessment of Surface Roughness
Contents
Foreword I
1 Scope
2 Normative References
3 Symbols
4 Technical Requirements
4.1 Material and Heat Treatment
4.2 Surface Roughness of Outer Ring
4.3 Tolerance
4.4 Residual Magnetism
4.5 Flexibility
4.6 Others
5 Measurement Methods
5.1 Surface Roughness
5.2 Tolerance
5.3 Residual Magnetism
5.4 Flexibility
6 Inspection Rules
7 Marking, Rust Prevention and Packaging
7.1 Marking
7.2 Rust Prevention and Packaging
Appendix A (Normative) General Requirements of Mandrel and Ring Gauge for Inspection
Figure 1 Measurement Method for Deviation of Mean Outside Diameter in a Single Plane
Figure 2 Measurement Method for Bearing Single Width
Table 1 Surface Roughness Value of Outer Ring
Table 2 Residual Magnetism Limit
Table 3 Inspection Items
Table A.1 Shaft Diameter Tolerances of Series 1 and 2 Bearings Mandrel
Table A.3 Shaft Diameter Tolerance of Series 3 Bearings Mandrel
Table A.3 Conical Degree and Radial Runout of Mandrel
Table A.4 Bore Diameter Tolerance of Special Ring Gauge
