1 Scope
This standard specifies the performance test rule of dustproofing, grease leakage and temperature rise of sealed deep groove ball bearing (with seal ring or shield at both sides) (hereinafter referred as sealed ball bearing) for general purpose that the boundary dimensions conform to those of 0, 2, 3 diameter series and d≤60mm in GB/T 276-1994.
This standard is applicable to the performance test of dustproofing, grease leakage and temperature rise of sealed ball bearing carried out on the tester.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent modification 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 edition of these documents applies. For undated references, the latest edition of the normative document referred to applies.
ents applies. For undated references, the latest edition of the normative document referred to applies.
Foreword I
1 Scope
2 Normative References
3 Terms, Definitions and Symbols
3.1 Terms and Definitions
3.2 Symbols
4 Test Preparation
4.1 Test Bearing Samples
4.2 Dust Medium
4.3 Weighing
4.4 Thermometer Instrument
4.5 Assembly of Test Bodies
5 Test Conditions
6 Test Process
7 Test Results
7.1 Dustproofing Performance Test
7.2 Grease Leakage Performance Test
7.3 Temperature Rise Performance Test
7.4 Test Determination
