Drawing
Parameter
| Boundary dimensions |
| d | 8 |
| D | 28 |
| B | 9 |
| B1 | 9 |
| r (1) (Min) | 0.3 |
| r1 (1) (Min) | 0.3 |
| Rated load (N) |
| Cr | 4550 |
| Cor | 1970 |
| Rated load {kgf} |
| Cr | 465 |
| Cor | 201 |
| Speed ratings(rpm) |
| Grease Z·ZZ V·V V | 28000 |
| D·D | 22000 |
| Oil Z | 34000 |
| Bearing No. |
| Open | 638 |
| Shields | 638ZZ1 |
| SealedVV | 638VV |
| SealedDD | 638DD |
| Fitting dimensions (mm) |
| d a (Min) | 10.0 |
| d b (Max) | 12.8 |
| Da (Max) | 26.0 |
| D b (Min) | 22.8 |
| r a (Max) | 0.3 |
| r b (Max) | 0.3 |
| Mass(g)(reference) |
| Open | 28.3 |
| Shields | 28.6 |
Details
Chenxin International Industry Co., Ltdspecializes in selling NSK-638DD-Small and Miniature Ball Bearing，Relevant information of NSK-638DD-Small and Miniature Ball Bearing includes： Designation: 638DD d:8 D:28 B:9 Brand:NSK Type:Small and Miniature Ball Bearing ，Want to know more about NSK-638DD-Small and Miniature Ball Bearing You can consult online or call the hotline, we will provide you with detailed service.
NSK-638DD-Small and Miniature Ball Bearing is widely used.NSK-638DD-Small and Miniature Ball Bearing is mainly used in construction machinery, machine tools, automobiles, metallurgy, mines, petroleum, machinery, electric power, railways and other industries. The price of NSK-638DD-Small and Miniature Ball Bearing sold by the company is reasonable, the quality is guaranteed, the service in all aspects is provided, and the customer's demand is satisfied.
