68609A Franke Slewing Ring Bearings
| Brand Name: | Franke |
| Model Number: | 68609A |
| Series: | M255400 |
| Cone Part Number: | M255449 |
| Cup Part Number: | M255410 |
| Design Units: | Imperial |
| Bearing Weight: | 30.8 Kg |
| Cage Type: | Pin-Type |
| d: | 288.925 mm |
| D: | 406.400 mm |
Product Details
| Series | M255400 |
| Cone Part Number | M255449 |
| Cup Part Number | M255410 |
| Design Units | Imperial |
| Bearing Weight | 30.8 Kg |
| Cage Type | Pin-Type |
| d | 288.925 mm |
| D | 406.400 mm |
| B - Cone Width | 77.788 mm |
| C - Cup Width | 60.325 mm |
| B | 77.788 mm |
| R - Cone Backface To Clear Radius1 | 6.35 mm |
| r - Cup Backface To Clear Radius2 | 3.30 mm |
| da - Cone Frontface Backing Diameter | 309.88 mm |
| db - Cone Backface Backing Diameter | 315.98 mm |
| Da - Cup Frontface Backing Diameter | 387.90 mm |
| Db - Cup Backface Backing Diameter | 378.97 mm |
| Ab - Cage-Cone Frontface Clearance | 5.6 mm |
| Aa - Cage-Cone Backface Clearance | 3.8 mm |
| a - Effective Center Location3 | -4.1 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 69300 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 267000 lbf |
| C0 - Static Radial Rating | 567000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 40100 lbf |
| K - Factor7 | 1.73 |
| e - ISO Factor8 | 0.34 |
| Y - ISO Factor9 | 1.77 |
| G1 - Heat Generation Factor (Roller-Raceway) | 2300 |
| G2 - Heat Generation Factor (Rib-Roller End) | 287 |
| Cg - Geometry Factor | 0.172 |
