Bearing K 40x47x20 NBS K 40x47x20 NBS bearing Size Chart (mm/inches) |
|---|
| Series | HM259000 |
| Cone Part Number | HM259049H |
| Cup Part Number | HM259010 |
| Design Units | Imperial |
| Bearing Weight | 41.60 Kg |
| Cage Type | Stamped Steel |
| d | 317.500 mm |
| D | 447.675 mm |
| B - Cone Width | 85.725 mm |
| C - Cup Width | 68.263 mm |
| B | 85.728 mm |
| R - Cone Backface To Clear Radius1 | 3.560 mm |
| r - Cup Backface To Clear Radius2 | 3.30 mm |
| da - Cone Frontface Backing Diameter | 338.07 mm |
| db - Cone Backface Backing Diameter | 341.88 mm |
| Da - Cup Frontface Backing Diameter | 427.99 mm |
| Db - Cup Backface Backing Diameter | 418.08 mm |
| Ab - Cage-Cone Frontface Clearance | 3.3 mm |
| Aa - Cage-Cone Backface Clearance | 0 mm |
| a - Effective Center Location3 | -4.8 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 96000 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 370000 lbf |
| C0 - Static Radial Rating | 606000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 55000 lbf |
| K - Factor7 | 1.74 |
| e - ISO Factor8 | 0.33 |
| Y - ISO Factor9 | 1.79 |
| G1 - Heat Generation Factor (Roller-Raceway) | 2645.1 |
| G2 - Heat Generation Factor (Rib-Roller End) | 284.4 |
| Cg - Geometry Factor | 0.179 |