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Bearing
SKF Stainless steel deep groove ball bearing
Bearing
Designation
W 639/2-2Z
| Parameter | Symbol | Value |
|---|---|---|
| Bore | d | 2 mm 0.0787 in |
| Outer diameter | D | 6 mm 0.2362 in |
| Width | B | 3 mm 0.1181 in |
| Reference speed | 180000 r/min | |
| Limiting speed | 90000 r/min | |
| Mass | 0.00031 kg 0.00068 lb | |
| Dynamic load rating | C | 0.19 kN 0.0427 klbf |
| Static load rating | C0 | 0.051 kN 0.0115 klbf |
| Fatigue load limit | Pu | 0.002 kN 0.0004 klbf |
| Inner ring outside diameter | d1 | 3 mm 0.1181 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. | 0.15 mm 0.0059 in |
| Chamfer dimension | r2 min. | 0.15 mm 0.0059 in |
| Shaft shoulder diameter | da min. | 2.9 mm 0.1142 in |
| Shaft shoulder diameter | da max. | 2.9 mm 0.1142 in |
| Housing shoulder diameter | Da max. | 5.4 mm 0.2126 in |
| Fillet radius | ra max. | 0.15 mm 0.0059 in |
| Minimum load factor | kr | 0.025 |
| Calculation factor | f0 | 6 |
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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