KOYO
Cylindrical roller bearings 4TR680B
Bearing KOYO 4TR680B, Ø680×970×740 mm. Request a quote — worldwide shipping.
Type Cylindrical roller bearings
Dimensions
Ø 680 × 970 × 740 mm
d680Bore Ø (mm)
×
D970Outer Ø (mm)
×
B740Width (mm)
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Technical specifications
| d | 680.000 mm |
| D | 970.000 mm |
| T | 740.000 mm |
| W | 740.000 mm |
| r(min.) | 6.4 mm |
| r1(min.) | 3.2 mm |
| Basic load ratings : Cr | 20200 kN |
| Basic load ratings : C0r | 52800 kN |
| Fatigue load limit : Cu | 3930 kN |
| Axial load factors : Y2 | 2.03 mm |
| Axial load factors : Y3 | 3.02 |
| Axial load factors : Y0 | 1.98 |
| Constant e | 0.33 |
| da(min.) | 743 mm |
| Da(max.) | 896 mm |
| S(min.) | 9 mm |
| ra(max.) | 6.4 mm |
| rb(max.) | 3.2 mm |
| (Refer.)Mass | 1790 kg |
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KOYO 4TR680B