81288 NSK Double Direction Thrust Bearings
| Brand Name: | NSK |
| Model Number: | 81288 |
| Series: | HM133400 |
| Cone Part Number: | HM133448 |
| Design Units: | Imperial |
| Cage Type: | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1: | 235000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2: | 60900 lbf |
| d: | 6.2992 in |
| B - Cone Width: | 2.7500 in |
Product Details
| Series | HM133400 |
| Cone Part Number | HM133448 |
| Design Units | Imperial |
| Cage Type | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 | 235000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 | 60900 lbf |
| d | 6.2992 in |
| B - Cone Width | 2.7500 in |
| R - Cone Backface To Clear Radius3 | 0.06 in |
| da - Cone Frontface Backing Diameter | 6.81 in |
| db - Cone Backface Backing Diameter | 6.81 in |
| Ab - Cage-Cone Frontface Clearance | 0.07 in |
| Aa - Cage-Cone Backface Clearance | 0.06 in |
| a - Effective Center Location4 | -0.68 in |
| C90 - Dynamic Radial Rating (90 million revolutions)5 | 35000 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)6 | 135000 lbf |
| C0 - Static Radial Rating | 233000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)7 | 15800 lbf |
| K - Factor8 | 2.21 |
| G1 - Heat Generation Factor (Roller-Raceway) | 668.6 |
| G2 - Heat Generation Factor (Rib-Roller End) | 103.2 |
| Cg - Geometry Factor | 0.134 |
