KOYO
Tapered roller bearings 30248R
Bearing KOYO 30248R, Ø240×440×72 mm. Request a quote — worldwide shipping.
Type Tapered roller bearings
Dimensions
Ø 240 × 440 × 72 mm
d240Bore Ø (mm)
×
D440Outer Ø (mm)
×
B72Width (mm)
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Technical specifications
| d | 240 mm |
| D | 440 mm |
| T | 79 mm |
| B | 72 mm |
| C | 60 mm |
| r(min.) | 5 mm |
| r1(min.) | 4 mm |
| Basic load ratings : Cr | 1540 kN |
| Basic load ratings : C0r | 1790 kN |
| Fatigue load limit : Cu | 191 kN |
| Limiting speeds(Grease lub.) | 730 min-1 |
| Limiting speeds(Oil lub.) | 980 min-1 |
| Load center spread : a | 82.7 mm |
| Constant e | 0.42 |
| Axial load factors : Y1 | 1.43 |
| Axial load factors : Y0 | 0.79 |
| da(min.) | 262 mm |
| db(max.) | 287 mm |
| Da(max.) | 422 mm |
| Da(min.) | 377 mm |
| Db(min.) | 409 mm |
| Sa(min.) | 14 mm |
| Sb(min.) | 18 mm |
| ra(max.) | 4 mm |
| rb(max.) | 3 mm |
| (Refer.)Mass | 49.5 kg |
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KOYO 30248R