KOYO
Tapered roller bearings 621/612
Bearing KOYO 621/612, Ø53.975×120.65×41.275 mm. Request a quote — worldwide shipping.
Type Tapered roller bearings
Dimensions
Ø 53,975 × 120,65 × 41,275 mm
d53,975Bore Ø (mm)
×
D120,65Outer Ø (mm)
×
B41,275Width (mm)
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Technical specifications
| d | 53.975 mm |
| D | 120.650 mm |
| T | 41.275 mm |
| B | 41.275 mm |
| C | 31.750 mm |
| r(min.) | 3.6 mm |
| r1(min.) | 3.2 mm |
| Basic load ratings : Cr | 218 kN |
| Basic load ratings : C0r | 217 kN |
| Fatigue load limit : Cu | 34.0 kN |
| Limiting speeds(Grease lub.) | 3500 min-1 |
| Limiting speeds(Oil lub.) | 4600 min-1 |
| Load center spread : a | 27.3 mm |
| Constant :e | 0.31 |
| Axial load factors : Y1 | 1.91 |
| Axial load factors : Y0 | 1.05 |
| da | 70.0 mm |
| db | 63.0 mm |
| Da | 105.0 mm |
| Db | 110.0 mm |
| ra(max.) | 3.6 mm |
| rb(max.) | 3.2 mm |
| (Refer.)Mass | 2.213 kg |
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KOYO 621/612