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Bearing
SKF Stainless steel deep groove ball bearing
Bearing
Designation
W 638/2.5-2Z
| Parameter | Symbol | Value |
|---|---|---|
| Bore | d | 2.5 mm 0.0984 in |
| Outer diameter | D | 6 mm 0.2362 in |
| Width | B | 2.6 mm 0.1024 in |
| Reference speed | 170000 r/min | |
| Limiting speed | 85000 r/min | |
| Mass | 0.00031 kg 0.00068 lb | |
| Dynamic load rating | C | 0.117 kN 0.0263 klbf |
| Static load rating | C0 | 0.036 kN 0.0081 klbf |
| Fatigue load limit | Pu | 0.002 kN 0.0004 klbf |
| Inner ring outside diameter | d1 | 3.7 mm 0.1457 in |
| Outer ring inside diameter | D1 | - - |
| Inner ring recess diameter | d2 | - - |
| Outer ring recess diameter | D2 | 5.4 mm 0.2126 in |
| Chamfer dimension | r1 min. | 0.08 mm 0.0031 in |
| Chamfer dimension | r2 min. | 0.08 mm 0.0031 in |
| Shaft shoulder diameter | da min. | 3.1 mm 0.122 in |
| Shaft shoulder diameter | da max. | 3.6 mm 0.1417 in |
| Housing shoulder diameter | Da max. | 5.5 mm 0.2165 in |
| Fillet radius | ra max. | 0.08 mm 0.0031 in |
| Minimum load factor | kr | 0.02 |
| Calculation factor | f0 | 7.1 |
Main information
Technical and reference information about the record
- Brand
- SKF
- Category
- Bearing
- Product type
- Stainless steel deep groove ball bearing
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