300RV4221 NSK ROLL NECK BEARINGS for ROLLING MILL
| Brand Name: | NSK |
| Model Number: | 300RV4221 |
| Series: | HH234000 |
| Cone Part Number: | HH234032 |
| Cup Part Number: | HH234018 |
| Design Units: | Imperial |
| Bearing Weight: | 33.6 Kg |
| Cage Type: | Pin-Type |
| d: | 139.700 mm |
| D: | 317.500 mm |
Product Details
| Series | HH234000 |
| Cone Part Number | HH234032 |
| Cup Part Number | HH234018 |
| Design Units | Imperial |
| Bearing Weight | 33.6 Kg |
| Cage Type | Pin-Type |
| d | 139.700 mm |
| D | 317.500 mm |
| B - Cone Width | 93.663 mm |
| C - Cup Width | 66.675 mm |
| B | 88.900 mm |
| R - Cone Backface To Clear Radius1 | 9.650 mm |
| r - Cup Backface To Clear Radius2 | 6.86 mm |
| da - Cone Frontface Backing Diameter | 167.89 mm |
| db - Cone Backface Backing Diameter | 180.09 mm |
| Da - Cup Frontface Backing Diameter | 286.00 mm |
| Db - Cup Backface Backing Diameter | 279.91 mm |
| Ab - Cage-Cone Frontface Clearance | 1.8 mm |
| Aa - Cage-Cone Backface Clearance | 9.1 mm |
| a - Effective Center Location3 | -26.4 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 67200 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 259000 lbf |
| C0 - Static Radial Rating | 354000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 37500 lbf |
| K - Factor7 | 1.79 |
| e - ISO Factor8 | 0.33 |
| Y - ISO Factor9 | 1.84 |
| G1 - Heat Generation Factor (Roller-Raceway) | 718.4 |
| G2 - Heat Generation Factor (Rib-Roller End) | 62.1 |
| Cg - Geometry Factor | 0.116 |
