NSK 638DD Miniature bearing
Also known as : 638DD
- Inside Diameter: 8 mm
- Outside Diameter: 28 mm
- Width: 9 mm
- Basic dynamic load rating: 4.55 kN
- Basic static load rating: 1.97 kN
NSK 638DD
NSK 638DD details
| NSK number | 638DD |
|---|---|
| Type | Miniature ball bearings, Metric design, With Two Contact Sealed |
| d | 8 mm |
| D | 28 mm |
| B1 | 9 mm |
| r1 min. | 0.30 mm |
| Cr | 4550 N |
| C0r | 1970 N |
| Limiting speeds | 22000 min-1 (Grease) |
| db | 12.8 mm |
| Db | 22.8 mm |
| rb | 0.30 mm |
| Mass | 28.60 g (approx.) |
