KOYO
Deep groove ball bearings 684
Bearing KOYO 684, Ø4×9×2.5 mm. Request a quote — worldwide shipping.
Type Deep groove ball bearings
Dimensions
Ø 4 × 9 × 2,5 mm
d4Bore Ø (mm)
×
D9Outer Ø (mm)
×
B2,5Width (mm)
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Technical specifications
| d | 4 mm |
| D | 9 mm |
| B | 2.5 mm |
| r(min.) | 0.15 mm |
| Basic load ratings : Cr | 0.800 kN |
| Basic load ratings : C0r | 0.23 kN |
| Fatigue load limit : Cu | 0.006 kN |
| factor : f0 | 12.8 |
| Limiting speeds(Grease lub.) | 59000 min-1 |
| Limiting speeds(Oil lub.) | 70000 min-1 |
| da(min.) | 5.2 mm |
| Da(max.) | 7.8 mm |
| ra(max.) | 0.1 mm |
| (Refer.)Mass | 0.6 g |
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KOYO 684