68478A Franke Slewing Ring Bearings
| Brand Name: | Franke |
| Model Number: | 68478A |
| Cone Part Number: | LM921845 |
| Design Units: | Imperial |
| Cage Type: | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1: | 66700 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2: | 17300 lbf |
| d: | 4.0000 in |
| B - Cone Width: | 1.2500 in |
| R - Cone Backface To Clear Radius3: | 0.13 in |
Product Details
| Cone Part Number | LM921845 |
| Design Units | Imperial |
| Cage Type | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 | 66700 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 | 17300 lbf |
| d | 4.0000 in |
| B - Cone Width | 1.2500 in |
| R - Cone Backface To Clear Radius3 | 0.13 in |
| da - Cone Frontface Backing Diameter | 4.69 in |
| db - Cone Backface Backing Diameter | 5.04 in |
| Ab - Cage-Cone Frontface Clearance | 0.16 in |
| Aa - Cage-Cone Backface Clearance | 0.33 in |
| a - Effective Center Location4 | 1.36 in |
| C90 - Dynamic Radial Rating (90 million revolutions)5 | 9930 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)6 | 38300 lbf |
| C0 - Static Radial Rating | 49200 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)7 | 19900 lbf |
| K - Factor8 | 0.5 |
| G1 - Heat Generation Factor (Roller-Raceway) | 114 |
| G2 - Heat Generation Factor (Rib-Roller End) | 37.4 |
| Cg - Geometry Factor | 0.115 |
