Standard No.:	JB/T 6644-1993
English Name:	Rolling bearings - Four-point contact ball bearings - Axial internal clearances
Chinese Name:	滚动轴承 滚针和双向推力圆柱滚子组合轴承尺寸和公差
Chinese Classification:	J11    Rolling bearing
Professional Classification:	JB    Professional Standard - Machinery
Issued by:	Luoyang Bearing Research Institute
Issued on:	1993-05-07
Implemented on:	1994-1-1
Status:	superseded
Superseded by:	JB/T 6644-2007 Rolling Bearings-Combined Needle Roller Bearings with Double Direction Thrust Roller Bearings
Superseded on:	2007-9-1
Abolished on:	2007-09-01
Language:	English
File Format:	PDF
Word Count:	5500 words
Price(USD):	344.00
Delivery:	via email in 1~3 business day

本标准规定了滚针和双向推力圆柱滚子组合轴承的尺寸和公差。 ZARN型――滚针和双向推力圆柱滚子组合轴承。 ZARF型――带法兰盘的滚针和双向推力圆柱滚子组合轴承。 本标准适用于轴承制造厂对轴承的生产和检验以及用户对成品轴承的选型和验收。