81122 NSK Double Direction Thrust Bearings
| Brand Name: | NSK |
| Model Number: | 81122 |
| Series: | L217800 |
| Cone Part Number: | L217849 |
| Design Units: | Imperial |
| Cage Type: | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1: | 36300 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2: | 9400 lbf |
| d: | 3.5000 in |
| B - Cone Width: | 0.8125 in |
Product Details
| Series | L217800 |
| Cone Part Number | L217849 |
| Design Units | Imperial |
| Cage Type | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 | 36300 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 | 9400 lbf |
| d | 3.5000 in |
| B - Cone Width | 0.8125 in |
| R - Cone Backface To Clear Radius3 | 0.06 in |
| da - Cone Frontface Backing Diameter | 3.7 in |
| db - Cone Backface Backing Diameter | 3.82 in |
| Ab - Cage-Cone Frontface Clearance | 0.1 in |
| Aa - Cage-Cone Backface Clearance | 0.01 in |
| a - Effective Center Location4 | 0 in |
| C90 - Dynamic Radial Rating (90 million revolutions)5 | 5400 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)6 | 20800 lbf |
| C0 - Static Radial Rating | 35200 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)7 | 3050 lbf |
| K - Factor8 | 1.77 |
| G1 - Heat Generation Factor (Roller-Raceway) | 111.3 |
| G2 - Heat Generation Factor (Rib-Roller End) | 74.8 |
| Cg - Geometry Factor | 0.115 |
