JB/T 6644-1993
Dimensions and tolerances of rolling bearing needle roller and double direction axial cylindrical roller combined bearings (English Version)
- Standard No.
- JB/T 6644-1993
- Language
- Chinese, Available in English version
- Release Date
- 1993
- Published By
- Professional Standard - Machinery
- Status
- 2007-09
- Replace By
- JB/T 6644-2007
- Latest
- JB/T 6644-2007
- Scope
- This standard specifies the dimensions and tolerances of needle roller and bidirectional thrust cylindrical roller combination bearings. ZARN type - needle roller and bidirectional thrust cylindrical roller combination bearing. ZARF type - needle roller and bidirectional thrust cylindrical roller combination bearing with flange. This standard applies to the production and inspection of bearings by bearing manufacturers and the selection and acceptance of finished bearings by users.
JB/T 6644-1993 history
- 2007 JB/T 6644-2007 Rolling bearings Combined needle roller bearings with double direction thrust roller bearings
- 1993 JB/T 6644-1993 Dimensions and tolerances of rolling bearing needle roller and double direction axial cylindrical roller combined bearings
