KOYO
Tapered roller bearings 1988R/22
Bearing KOYO 1988R/22, Ø28.575×57.15×19.355 mm. Request a quote — worldwide shipping.
Type Tapered roller bearings
Dimensions
Ø 28,575 × 57,15 × 19,355 mm
d28,575Bore Ø (mm)
×
D57,15Outer Ø (mm)
×
B19,355Width (mm)
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Technical specifications
| d | 28.575 mm |
| D | 57.150 mm |
| T | 19.845 mm |
| B | 19.355 mm |
| C | 15.875 mm |
| r(min.) | 3.6 mm |
| r1(min.) | 1.6 mm |
| Basic load ratings : Cr | 60.8 kN |
| Basic load ratings : C0r | 57.1 kN |
| Fatigue load limit : Cu | 8.25 kN |
| Limiting speeds(Grease lub.) | 7000 min-1 |
| Limiting speeds(Oil lub.) | 9300 min-1 |
| Load center spread : a | 13.9 mm |
| Constant :e | 0.33 |
| Axial load factors : Y1 | 1.82 |
| Axial load factors : Y0 | 1.00 |
| da | 39.5 mm |
| db | 33.5 mm |
| Da | 51.0 mm |
| Db | 53.5 mm |
| ra(max.) | 3.6 mm |
| rb(max.) | 1.6 mm |
| (Refer.)Mass | 0.227 kg |
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KOYO 1988R/22