SKF
SKF W 638 Deep Groove Ball Bearings
Product Code:W 638
Description
Technical specificationMetricImperialDIMENSIONSd8 mmD28 mmB9 mmd2? 13.9 mmD2? 22.38 mmr1,2min. 0.3 mmABUTMENT DIMENSIONSdamin. 10 mmDamax. 26 mmramax. 0.3 mmCALCULATION DATABasic dynamic load ratingC3.97 kNBasic static load ratingC01.96 kNFatigue load limitPu0.083 kNReference speed67000 r/minLimiting speed40000 r/minCalculation factorkr0.035Calculation factorf012.4MASSMass bearing0.027 kg
Technical Specifications
Technical specification
DIMENSIONS
| d | 8 mm | |
|---|---|---|
| D | 28 mm | |
| B | 9 mm | |
| d2 | ? 13.9 mm | |
| D2 | ? 22.38 mm | |
| r1,2 | min. 0.3 mm |
ABUTMENT DIMENSIONS
| da | min. 10 mm | |
|---|---|---|
| Da | max. 26 mm | |
| ra | max. 0.3 mm |
CALCULATION DATA
| Basic dynamic load rating | C | 3.97 kN |
|---|---|---|
| Basic static load rating | C0 | 1.96 kN |
| Fatigue load limit | Pu | 0.083 kN |
| Reference speed | 67000 r/min | |
| Limiting speed | 40000 r/min | |
| Calculation factor | kr | 0.035 |
| Calculation factor | f0 | 12.4 |
MASS
| Mass bearing | 0.027 kg |
|---|