KOYO 57072JRHR4 tapered roller bearings
We work 93000 Series closely with our 93750 Cone Part Number KOYO 57072JRHR4 tapered roller bearings manufacturing partners to bring the best value to customers.
| Series | 93000 |
| Cone Part Number | 93750 |
| Cup Part Number | 93126 |
| Design Units | Imperial |
| Bearing Weight | 20.60 Kg |
| Cage Type | Stamped Steel |
| d | 190.5 mm |
| D | 317.500 mm |
| B – Cone Width | 63.5 mm |
| C – Cup Width | 50.800 mm |
| B | 68.263 mm |
| R – Cone Backface To Clear Radius1 | 4.320 mm |
| r – Cup Backface To Clear Radius2 | 3.30 mm |
| da – Cone Frontface Backing Diameter | 212.09 mm |
| db – Cone Backface Backing Diameter | 217.93 mm |
| Da – Cup Frontface Backing Diameter | 300.00 mm |
| Db – Cup Backface Backing Diameter | 284.99 mm |
| Ab – Cage-Cone Frontface Clearance | 5.3 mm |
| Aa – Cage-Cone Backface Clearance | 8.1 mm |
| a – Effective Center Location3 | 7.9 mm |
| C90 – Dynamic Radial Rating (90 million revolutions)4 | 42600 lbf |
| C1 – Dynamic Radial Rating (1 million revolutions)5 | 164000 lbf |
| C0 – Static Radial Rating | 290000 lbf |
| Ca90 – Dynamic Thrust Rating (90 million revolutions)6 | 38200 lbf |
| K – Factor7 | 1.12 |
| e – ISO Factor8 | 0.52 |
| Y – ISO Factor9 | 1.15 |
| G1 – Heat Generation Factor (Roller-Raceway) | 912.5 |
| G2 – Heat Generation Factor (Rib-Roller End) | 126.1 |
| Cg – Geometry Factor | 0.146 |
Detailed Parameters
parameter：
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