Standard No.:	GB/T 32321-2015
English Name:	Rolling bearings―Sealed deep groove ball bearings―Performance test rule of dustproofing,grease leakage and temperature rise
Chinese Name:	滚动轴承 密封深沟球轴承 防尘、漏脂及温升性能试验规程
Chinese Classification:	J11    Rolling bearing
Professional Classification:	GB    National Standard
ICS Classification:	21.100.20 21.100.20    Rolling bearings 21.100.20
Issued by:	AQSIQ and MOH
Issued on:	2015-12-31
Implemented on:	2016-4-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	60.0
Delivery:	via email in 1 business day

　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