1 Scope
This standard specifies the symbol, structural type and designation, boundary dimensions and technical specification of thrust bearings for automobile king pin (hereinafter referred to as "bearings").
This standard is applicable to the thrust bearings for automobile and other motor vehicles and used for the production and inspection by the manufacturer as well as customer acceptance.
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 (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 307.2-2005 Rolling Bearings-Measuring and Gauging Principles and Methods (ISO 1132-2: 2001, Rolling Bearings-Tolerances-Part 2: Measuring and Gauging Principles and Methods, MOD)
GB/T 708-2006 Dimension Shape Weight and Tolerance for Cold-rolled Steel Plates and Sheets (ISO 16162: 2000, NEQ)
GB/T 8597-2003 Rolling Bearings-Rust Proof Packaging
GB/T 13237-1991 Cold-rolled Quality Carbon Structural Steel Sheets and Strips
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/T3574-1997 Rolling Bearings-Marking for Products
JB/T 6639-2004 Specifications for Skeleton Rubber Seal of Deep Groove Ball Bearings
JB/T 6641-2007 Rolling Bearings-Residual Magnetism and Its Assessment Method
JB/T 8921-1999 Rolling Bearings and Commercial Parts-Inspection Rules
Contents
Foreword I
1 Scope
2 Normative References
3 Symbols
4 Structural Types and Designations
4.1 Structural Type
4.2 Sealing Structure
4.3 Designation
4.4 Designation Example
5 Dimensions
6 Technical Requirements
6.1 Materials and Heat Treatment
6.2 Tolerance of Bearing
6.3 Lubricating Grease
6.4 Residual Magnetism
6.5 Miscellaneous
7 Measurement Methods
8 Inspection Rules
9 Marking, Rust Prevention and Packaging
Figure 1 Schematic Diagram for Symbol
Figure 2 Thrust Ball Bearing (Type 50000 ZS)
Figure 3 Cylindrical Roller Thrust Bearing (Type 80000 ZS)
Figure 4 Thrust Taper Roller Bearing with Tapered Shaft Washer (Type 90000 ZS)
Figure 5 Thrust Taper Roller Bearing with Flat Raceway Shaft Washer (Type 90000 PZS)
Figure 6 Schematic Diagram for Sealed Bearing in Shell
Figure 7 Measurement Diagram for Sia
Table 1 Series 12
Table 2 Series 17
Table 3 Shaft Washer
Table 4 Housing Washer
Table 5 Inspection Items
