This standard specifies the performance test rule of dustproofing, grease leakage and temperature rise of general-purpose sealed deep groove ball bearings (with sealing ring or dust cover on both sides) (hereinafter referred to as "sealed ball bearings") with diameter of series 0, 2, 3 and nominal inside diameter d≤60mm in GB/T 276. The application of bearing of other types, dimension series and dimensional ranges may refer to this standard.
This standard is applicable to the tests for dustproofing, grease leakage and temperature rise performance of sealed ball bearings carried out on the test equipment.
Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
4 Symbols
5 Test Preparation
6 Test Conditions
7 Test Procedures
8 Test Results
