SKF
SKF W 638/4 R-2RS1 Deep Groove Ball Bearing
Product Code:W 638/4 R-2RS1
Description
Technical specification MetricImperial DIMENSIONS d 4 mmD 9 mmB 4 mmd1? 5.2 mmD2? 8.1 mmD3 10.3 mmC 1 mmr1,2min. 0.1 mm ABUTMENT DIMENSIONS damin. 4.8 mmdamax. 5.1 mmramax. 0.1 mm CALCULATION DATA Basic dynamic load ratingC 0.364 kNBasic static load ratingC0 0.114 kNFatigue load limitPu 0.005 kNLimiting speed 40000 r/minCalculation factorkr 0.02Calculation factorf0 6.5 MASS Mass bearing 0.0011 kg
Technical Specifications
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 |
| Limiting speed | 40000 r/min | |
| Calculation factor | kr | 0.02 |
| Calculation factor | f0 | 6.5 |
MASS
| Mass bearing | 0.0011 kg |
|---|