FOR REFERENCE ONLY
>
Bearing No. 684
Specifications
(Boundary dimensions ...etc)
| d(mm) | 4 |
|---|---|
| D(mm) | 9 |
| B(mm) | 2.5 |
| r(min.)(mm) | 0.15 |
| Basic load ratings : Cr(kN) | 0.800 |
| Basic load ratings : C0r(kN) | 0.23 |
| Fatigue load limit : Cu(kN) | 0.006 |
| factor : f0() | 12.8 |
| Limiting speeds(Grease lub.)(min-1) | 59000 |
| Limiting speeds(Oil lub.)(min-1) | 70000 |
Mounting dimensions
| da(min.)(mm) | 5.2 |
|---|---|
| Da(max.)(mm) | 7.8 |
| ra(max.)(mm) | 0.1 |
Refer.
| (Refer.)Mass(g) | 0.6 |
|---|
2025/10/26