NN3020K Bearing Size Chart (mm/inches) |
|---|
| Series | 555 |
| Cone Part Number | 557 |
| Design Units | Imperial |
| Cage Type | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 | 74700 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 | 19400 lbf |
| d | 2.1654 in |
| B - Cone Width | 1.4440 in |
| R - Cone Backface To Clear Radius3 | 0.14 in |
| da - Cone Frontface Backing Diameter | 2.6 in |
| db - Cone Backface Backing Diameter | 2.83 in |
| Ab - Cage-Cone Frontface Clearance | 0.08 in |
| Aa - Cage-Cone Backface Clearance | 0.07 in |
| a - Effective Center Location4 | -0.37 in |
| C90 - Dynamic Radial Rating (90 million revolutions)5 | 11100 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)6 | 42900 lbf |
| C0 - Static Radial Rating | 55700 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)7 | 6590 lbf |
| K - Factor8 | 1.69 |
| G1 - Heat Generation Factor (Roller-Raceway) | 91 |
| G2 - Heat Generation Factor (Rib-Roller End) | 21.1 |
| Cg - Geometry Factor | 0.111 |