SKF W 638/4 R-2Z Deep Groove Ball Bearings
BRAND : SKF
Technical specification
Details
Technical specification
DIMENSIONS
| d | 4 mm | |
|---|---|---|
| D | 9 mm | |
| B | 4 mm | |
| d1 | ? 5.2 mm | |
| D2 | ? 8.1 mm | |
| D3 | 10.3 mm | |
| C | 1 mm | |
| r1,2 | min. 0.1 mm |
ABUTMENT DIMENSIONS
| da | min. 4.8 mm | |
|---|---|---|
| da | max. 5.1 mm | |
| ra | max. 0.1 mm |
CALCULATION DATA
| Basic dynamic load rating | C | 0.364 kN |
|---|---|---|
| Basic static load rating | C0 | 0.114 kN |
| Fatigue load limit | Pu | 0.005 kN |
| Reference speed | 140000 r/min | |
| Limiting speed | 70000 r/min | |
| Calculation factor | kr | 0.02 |
| Calculation factor | f0 | 6.5 |
MASS
| Mass bearing | 0.0011 kg |
|---|
