SKF
SKF W 638/2 R-2Z Deep Groove Ball Bearing
Product Code:W 638/2 R-2Z
Description
Technical specification MetricImperial DIMENSIONS d 2 mmD 5 mmB 2.3 mmd1? 2.7 mmD2? 4.4 mmD3 6.1 mmC 0.6 mmr1,2min. 0.08 mm ABUTMENT DIMENSIONS damin. 2.5 mmdamax. 2.6 mmramax. 0.08 mm CALCULATION DATA Basic dynamic load ratingC 0.094 kNBasic static load ratingC0 0.025 kNFatigue load limitPu 0.001 kNReference speed 200000 r/minLimiting speed 100000 r/minCalculation factorkr 0.02Calculation factorf0 6.5 MASS Mass bearing 0.000204 kg
Technical Specifications
Technical specification 
DIMENSIONS
| d | 2 mm | |
|---|---|---|
| D | 5 mm | |
| B | 2.3 mm | |
| d1 | ? 2.7 mm | |
| D2 | ? 4.4 mm | |
| D3 | 6.1 mm | |
| C | 0.6 mm | |
| r1,2 | min. 0.08 mm |
ABUTMENT DIMENSIONS
| da | min. 2.5 mm | |
|---|---|---|
| da | max. 2.6 mm | |
| ra | max. 0.08 mm |
CALCULATION DATA
| Basic dynamic load rating | C | 0.094 kN |
|---|---|---|
| Basic static load rating | C0 | 0.025 kN |
| Fatigue load limit | Pu | 0.001 kN |
| Reference speed | 200000 r/min | |
| Limiting speed | 100000 r/min | |
| Calculation factor | kr | 0.02 |
| Calculation factor | f0 | 6.5 |
MASS
| Mass bearing | 0.000204 kg |
|---|