SKF
SKF W 638/2.5 R-2Z Deep Groove Ball Bearings
Product Code:W 638/2.5 R-2Z
Description
Technical specificationMetricImperialDIMENSIONSd2.5 mmD6 mmB2.6 mmd1? 3.7 mmD2? 5.4 mmD37.1 mmC0.8 mmr1,2min. 0.08 mmABUTMENT DIMENSIONSdamin. 3.1 mmdamax. 3.6 mmramax. 0.08 mmCALCULATION DATABasic dynamic load ratingC0.117 kNBasic static load ratingC00.036 kNFatigue load limitPu0.002 kNReference speed170000 r/minLimiting speed85000 r/minCalculation factorkr0.02Calculation factorf07.1MASSMass bearing0.000405 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 | |
| D3 | 7.1 mm | |
| C | 0.8 mm | |
| r1,2 | min. 0.08 mm |
ABUTMENT DIMENSIONS
| da | min. 3.1 mm | |
|---|---|---|
| da | max. 3.6 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 | 0.000405 kg |
|---|