KOYO
Tapered roller bearings 30311JR
Bearing KOYO 30311JR, Ø55×120×29 mm. Request a quote — worldwide shipping.
Type Tapered roller bearings
Dimensions
Ø 55 × 120 × 29 mm
d55Bore Ø (mm)
×
D120Outer Ø (mm)
×
B29Width (mm)
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Technical specifications
| d | 55 mm |
| D | 120 mm |
| T | 31.5 mm |
| B | 29 mm |
| C | 25 mm |
| r(min.) | 2.5 mm |
| r1(min.) | 2 mm |
| Basic load ratings : Cr | 187 kN |
| Basic load ratings : C0r | 170 kN |
| Fatigue load limit : Cu | 27.0 kN |
| Limiting speeds(Grease lub.) | 3300 min-1 |
| Limiting speeds(Oil lub.) | 4500 min-1 |
| Load center spread : a | 25.5 mm |
| Constant e | 0.35 |
| Axial load factors : Y1 | 1.74 |
| Axial load factors : Y0 | 0.96 |
| da(min.) | 67 mm |
| db(max.) | 71 mm |
| Da(max.) | 108 mm |
| Da(min.) | 104 mm |
| Db(min.) | 111 mm |
| Sa(min.) | 4 mm |
| Sb(min.) | 6.5 mm |
| ra(max.) | 2 mm |
| rb(max.) | 2 mm |
| (Refer.)Mass | 1.65 kg |
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KOYO 30311JR