KOYO
Deep groove ball bearings 638 2RD
Bearing KOYO 638 2RD, Ø8×28×9 mm. Request a quote — worldwide shipping.
Type Deep groove ball bearings
Dimensions
Ø 8 × 28 × 9 mm
d8Bore Ø (mm)
×
D28Outer Ø (mm)
×
B9Width (mm)
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Technical specifications
| d | 8 mm |
| D | 28 mm |
| B | 9 mm |
| r(min.) | 0.3 mm |
| Basic load ratings : Cr | 5.65 kN |
| Basic load ratings : C0r | 1.95 kN |
| Fatigue load limit : Cu | 0.100 kN |
| factor : f0 | 12.3 |
| Limiting speeds(Grease lub.) | 23000 min-1 |
| Limiting speeds(Oil lub.) | - min-1 |
| da(min.) | 10 mm |
| Da(max.) | 26 mm |
| ra(max.) | 0.3 mm |
| (Refer.)Mass | 29 g |
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KOYO 638 2RD