68FC49300A KOYO Four-row cylindrical roller bearings
| Brand Name: | KOYO |
| Model Number: | 68FC49300A |
| Series: | 420000 |
| Cone Part Number: | EE420651 |
| Design Units: | Imperial |
| Cage Type: | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1: | 457000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2: | 118000 lbf |
| d: | 6.5 in |
| B - Cone Width: | 3.4999 in |
| PDF |
68FC49300A |
Product Details
| Series | 420000 |
| Cone Part Number | EE420651 |
| Design Units | Imperial |
| Cage Type | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 | 457000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 | 118000 lbf |
| d | 6.5 in |
| B - Cone Width | 3.4999 in |
| R - Cone Backface To Clear Radius3 | 0.380 in |
| da - Cone Frontface Backing Diameter | 7.83 in |
| db - Cone Backface Backing Diameter | 8.46 in |
| Ab - Cage-Cone Frontface Clearance | 0.14 in |
| Aa - Cage-Cone Backface Clearance | 0.72 in |
| a - Effective Center Location4 | -0.61 in |
| C90 - Dynamic Radial Rating (90 million revolutions)5 | 68100 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)6 | 263000 lbf |
| C0 - Static Radial Rating | 409000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)7 | 46800 lbf |
| K - Factor8 | 1.45 |
| G1 - Heat Generation Factor (Roller-Raceway) | 1150.5 |
| G2 - Heat Generation Factor (Rib-Roller End) | 128.2 |
| Cg - Geometry Factor | 0.145 |
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