891/1 NSK Double Direction Thrust Bearings
| Brand Name: | NSK |
| Model Number: | 891/1 |
| Series: | H238100 |
| Cone Part Number: | H238148 |
| Design Units: | Imperial |
| Cage Type: | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1: | 438000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2: | 114000 lbf |
| d: | 6.8750 in |
| B - Cone Width: | 3.2500 in |
Product Details
| Series | H238100 |
| Cone Part Number | H238148 |
| Design Units | Imperial |
| Cage Type | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 | 438000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 | 114000 lbf |
| d | 6.8750 in |
| B - Cone Width | 3.2500 in |
| R - Cone Backface To Clear Radius3 | 0.25 in |
| da - Cone Frontface Backing Diameter | 7.68 in |
| db - Cone Backface Backing Diameter | 8.07 in |
| Ab - Cage-Cone Frontface Clearance | 0.13 in |
| Aa - Cage-Cone Backface Clearance | 0.3 in |
| a - Effective Center Location4 | -0.73 in |
| C90 - Dynamic Radial Rating (90 million revolutions)5 | 65200 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)6 | 252000 lbf |
| C0 - Static Radial Rating | 378000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)7 | 36900 lbf |
| K - Factor8 | 1.77 |
| G1 - Heat Generation Factor (Roller-Raceway) | 913.6 |
| G2 - Heat Generation Factor (Rib-Roller End) | 92.2 |
| Cg - Geometry Factor | 0.126 |