SKF
SKF W 638/2.5-2Z Deep Groove Ball Bearing
Product Code:W 638/2.5-2Z
Description
Technical specification MetricImperial DIMENSIONS d 2.5 mmD 6 mmB 2.6 mmd1? 3.7 mmD2? 5.4 mmr1,2min. 0.08 mm ABUTMENT DIMENSIONS damin. 3.1 mmdamax. 3.6 mmDamax. 5.5 mmramax. 0.08 mm CALCULATION DATA Basic dynamic load ratingC 0.117 kNBasic static load ratingC0 0.036 kNFatigue load limitPu 0.002 kNReference speed 170000 r/minLimiting speed 85000 r/minCalculation factorkr 0.02Calculation factorf0 7.1 MASS Mass bearing 0.000305 kg
Technical Specifications
Technical specification 
DIMENSIONS
| d | 2.5 mm | |
|---|---|---|
| D | 6 mm | |
| B | 2.6 mm | |
| d1 | ? 3.7 mm | |
| D2 | ? 5.4 mm | |
| r1,2 | min. 0.08 mm |
ABUTMENT DIMENSIONS
| da | min. 3.1 mm | |
|---|---|---|
| da | max. 3.6 mm | |
| Da | max. 5.5 mm | |
| ra | max. 0.08 mm |
CALCULATION DATA
| Basic dynamic load rating | C | 0.117 kN |
|---|---|---|
| Basic static load rating | C0 | 0.036 kN |
| Fatigue load limit | Pu | 0.002 kN |
| Reference speed | 170000 r/min | |
| Limiting speed | 85000 r/min | |
| Calculation factor | kr | 0.02 |
| Calculation factor | f0 | 7.1 |
MASS
| Mass bearing | 0.000305 kg |
|---|