81248 NSK Double Direction Thrust Bearings
| Brand Name: | NSK |
| Model Number: | 81248 |
| Series: | 66000 |
| Cone Part Number: | 66200 |
| Cup Part Number: | 66462D |
| Design Units: | Imperial |
| Bearing Weight: | 7.84 lb |
| Cage Type: | Stamped Steel |
| Ab - Cage-Cone Frontface Clearance: | 0.11 in |
| d: | 2 in |
Product Details
| Series | 66000 |
| Cone Part Number | 66200 |
| Cup Part Number | 66462D |
| Design Units | Imperial |
| Bearing Weight | 7.84 lb |
| Cage Type | Stamped Steel |
| Ab - Cage-Cone Frontface Clearance | 0.11 in |
| d | 2 in |
| D | 4.6250 in |
| B - Cone Width | 1.2500 in |
| C - Double Cup Width | 2.125 in |
| T - Bearing Width across Cones | 2.8750 in |
| R - Cone Backface To Clear Radius1 | 0.14 in |
| r - Cup Frontface To Clear Radius2 | 0.03 in |
| db - Cone Backface Backing Diameter | 2.8 in |
| Da - Cup Frontface Backing Diameter | 4.41 in |
| Aa - Cage-Cone Backface Clearance | 0.17 in |
| C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 | 10300 lbf |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 | 69100 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 | 17900 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 11000 lbf |
| K - Factor7 | 0.93 |
| e - ISO Factor8 | 0.63 |
| Y1 - ISO Factor9 | 1.08 |
| Y2 - ISO Factor10 | 1.6 |
| G1 - Heat Generation Factor (Roller-Raceway)11 | 50.2 |
| G2 - Heat Generation Factor (Rib-Roller End) | 16.4 |
| Cg - Geometry Factor12 | 0.0751 |
