NA4908 Bearing Size Chart (mm/inches) |
|---|
| Series | JW5500 |
| Cone Part Number | JW5549 |
| Design Units | METRIC |
| Cage Type | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 | 67400 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 | 17500 lbf |
| d | 55.000 mm |
| B - Cone Width | 31.000 mm |
| WPD | 107.6 mm |
| DD | 83.7 mm |
| R - Cone Backface To Clear Radius3 | 3.050 mm |
| da - Cone Frontface Backing Diameter | 66 mm |
| db - Cone Backface Backing Diameter | 78 mm |
| Ab - Cage-Cone Frontface Clearance | 4.3 mm |
| Aa - Cage-Cone Backface Clearance | 4.3 mm |
| a - Effective Center Location4 | 5.8 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)5 | 44600 N |
| C1 - Dynamic Radial Rating (1 million revolutions)6 | 172000 N |
| C0 - Static Radial Rating | 175000 N |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)7 | 66200 N |
| K - Factor8 | 0.67 |
| G1 - Heat Generation Factor (Roller-Raceway) | 51.1 |
| G2 - Heat Generation Factor (Rib-Roller End) | 17.8 |
| Cg - Geometry Factor | 0.0831 |