KOYO
Tapered roller bearings 30312JR
Bearing KOYO 30312JR, Ø60×130×31 mm. Request a quote — worldwide shipping.
Type Tapered roller bearings
Dimensions
Ø 60 × 130 × 31 mm
d60Bore Ø (mm)
×
D130Outer Ø (mm)
×
B31Width (mm)
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Technical specifications
| d | 60 mm |
| D | 130 mm |
| T | 33.5 mm |
| B | 31 mm |
| C | 26 mm |
| r(min.) | 3 mm |
| r1(min.) | 2.5 mm |
| Basic load ratings : Cr | 217 kN |
| Basic load ratings : C0r | 201 kN |
| Fatigue load limit : Cu | 31.9 kN |
| Limiting speeds(Grease lub.) | 3100 min-1 |
| Limiting speeds(Oil lub.) | 4100 min-1 |
| Load center spread : a | 26.9 mm |
| Constant e | 0.35 |
| Axial load factors : Y1 | 1.74 |
| Axial load factors : Y0 | 0.96 |
| da(min.) | 74 mm |
| db(max.) | 77 mm |
| Da(max.) | 118 mm |
| Da(min.) | 112 mm |
| Db(min.) | 120 mm |
| Sa(min.) | 4 mm |
| Sb(min.) | 7.5 mm |
| ra(max.) | 2.5 mm |
| rb(max.) | 2 mm |
| (Refer.)Mass | 2.08 kg |
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KOYO 30312JR