442251 TIMKEN NATIONAL OIL SEAL
| Brand Name: | TIMKEN |
| Model Number: | 442251 |
| Series: | 09000 |
| Cone Part Number: | 09075 |
| Cup Part Number: | 09201 |
| Design Units: | Imperial |
| Bearing Weight: | 0.20 Kg |
| Cage Type: | Stamped Steel |
| d: | 18.999 mm |
| D: | 50.8 mm |
Product Details
| Series | 09000 |
| Cone Part Number | 09075 |
| Cup Part Number | 09201 |
| Design Units | Imperial |
| Bearing Weight | 0.20 Kg |
| Cage Type | Stamped Steel |
| d | 18.999 mm |
| D | 50.8 mm |
| B - Cone Width | 22.332 mm |
| C - Cup Width | 17.463 mm |
| B | 21.433 mm |
| R - Cone Backface To Clear Radius1 | 2.290 mm |
| r - Cup Backface To Clear Radius2 | 0.51 mm |
| da - Cone Frontface Backing Diameter | 23.88 mm |
| db - Cone Backface Backing Diameter | 0 mm |
| Da - Cup Frontface Backing Diameter | 45.97 mm |
| Db - Cup Backface Backing Diameter | 43.94 mm |
| Ab - Cage-Cone Frontface Clearance | 1.5 mm |
| Aa - Cage-Cone Backface Clearance | 2.5 mm |
| a - Effective Center Location3 | -9.9 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 2500 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 9630 lbf |
| C0 - Static Radial Rating | 9100 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 1140 lbf |
| K - Factor7 | 2.2 |
| e - ISO Factor8 | 0.27 |
| Y - ISO Factor9 | 2.26 |
| G1 - Heat Generation Factor (Roller-Raceway) | 8 |
| G2 - Heat Generation Factor (Rib-Roller End) | 4 |
| Cg - Geometry Factor | 0.0452 |