Detailed description
1.The 6303 deep groove ball bearings has many kinds of specifications.Their sealed types have two:one is steel sealed one is rubber sealed.
| Bearing No. | Dimensions | ||||||||
| d | D | B | r smin | r 1 smin | |||||
| 6303 | 6303-N | 6303-ZN | 6303-2Z | 6303-2RS | 17 | 47 | 14 | 1 | 0.5 |
2. Longer service life: High limiting speed:l little attention or maintenance.,
3.Our bearings supports Shen Zhou manned spacecraft and the long march no.2 rocket well.
4. HRB bearings passed through: ISO9001-2000.GJB9001A-2001.TS16949-2002.








