LM742749D/LM74271 NSK Double Row Double Row Bearings
| Brand Name: | NSK |
| Model Number: | LM742749D/LM74271 |
| Series: | M272700 |
| Cone Part Number: | M272749 |
| Design Units: | Imperial |
| Cage Type: | Pin-Type |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1: | 1460000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2: | 379000 lbf |
| d: | 18.8750 in |
| B - Cone Width: | 5.0625 in |
Product Details
| Series | M272700 |
| Cone Part Number | M272749 |
| Design Units | Imperial |
| Cage Type | Pin-Type |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 | 1460000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 | 379000 lbf |
| d | 18.8750 in |
| B - Cone Width | 5.0625 in |
| R - Cone Backface To Clear Radius3 | 0.25 in |
| da - Cone Frontface Backing Diameter | 19.96 in |
| db - Cone Backface Backing Diameter | 20.31 in |
| Ab - Cage-Cone Frontface Clearance | 0.41 in |
| Aa - Cage-Cone Backface Clearance | 0.31 in |
| a - Effective Center Location4 | -0.35 in |
| C90 - Dynamic Radial Rating (90 million revolutions)5 | 218000 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)6 | 839000 lbf |
| C0 - Static Radial Rating | 1660000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)7 | 124000 lbf |
| K - Factor8 | 1.76 |
| G1 - Heat Generation Factor (Roller-Raceway) | 8110 |
| G2 - Heat Generation Factor (Rib-Roller End) | 508 |
| Cg - Geometry Factor | 0.26 |
