JB/T 8570-2008 in English

1 Scope

This standard specifies the boundary dimensions, coding methods and technical conditions of deep groove ball bearings (hereinafter referred to as "bearings") made of quality carbon structural steels.
This standard is applicable to the manufacturer production gauging and user acceptance of bearings used under low-speed and light-load conditions such as pushcarts, truckles and sliding doors of instruments as well as manual machinery.

2. Normative References

The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding the corrected contents), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For any undated references, the latest edition of the document referred to applies.

1 Scope
2. Normative References
3 Symbols
4 Coding Methods
5 Boundary Dimensions
6 Technical Requirements
7 Mesurement and Inspection Methods
8 Gauging Rules
9 Marking
10 Rustproofing and Packaging.