FCD6496350 bearings ( 320 mm x 480 mm x 350 mm) have the advantages of Extremely high radial load capacity, high rigidity, separable design, and are therefore widely used in the metallurgical rolling mills, large gearboxes, and heavy-duty extrusion presses.

| Part Number | FCD6496350 |
| Old Code | 672764 |
| Interchangeable | LYC FCD6496350 |
| Cage | machined brass solid cages |
| Radial internal clearance | C3 |
| Seal | Open |
| Bearing Type | Four-row cylindrical roller bearing for cold rolling mill, hot rolling mill, billet mill |
| Equivalent | FCD6496350 (China) 314274B (SKF) 541851 (FAG) 320RV4811 (NSK) |
| Design type | FCD = double outer rings, double inner rings, no ribs on inner rings |
| Bearing Weight [lb] | 496.035 |
| d φ Inside [inch] | 12.598 |
| D Φ Outside [inch] | 18.898 |
| B Width [inch] | 13.780 |
| Fw Raceway diameter inner ring [inch] | 14.331 |
| C [inch] | 13.780 |
| r min Chamfer inner ring | 4 mm |
| r1 min Chamfer outer ring | 4 mm |
| Cr Radial Dynamic [lbf] | 1001484 |
| C0r Radial Static [lbf] | 2185056 |
The FCD6496350 Four-row cylindrical roller bearings mainly consist of an inner ring, an outer ring, four rows of cylindrical rollers, a cage, and a spacer. Common structures use a configuration of double outer rings (each with double raceways) and a single inner ring (with four raceways), or an interchangeable combination of inner and outer rings. Axial positioning and load distribution are achieved through the spacer.
The advantages of four-row cylindrical roller bearings are their extremely high radial load capacity, high rigidity, and the line contact between the rollers and raceways, resulting in a low coefficient of friction and allowing for high-speed operation under heavy loads. They can also be used as floating end bearings, capable of withstanding axial displacement caused by thermal expansion, and are easy to install and maintain.















