FCD 126184515 bearings ( 630 mm x 920 mm x 515 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 | FCD 126184515 |
| Interchangeable | ZWZ FCD 126184515 |
| 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 |
| Design type | FCD = double outer rings, double inner rings, no ribs on inner rings |
| Bearing Weight [lb] | 2605.837 |
| d φ Inside [inch] | 24.803 |
| D Φ Outside [inch] | 36.220 |
| B Width [inch] | 20.276 |
| Fw Raceway diameter inner ring [inch] | 27.559 |
| C [inch] | 20.276 |
| D1 [inch] | 32.480 |
| b(max) [inch] | 0.984 |
| k(max) [inch] | 0.472 |
| r min Chamfer inner ring | 7.5 mm |
| r1 min Chamfer outer ring | 7.5 mm |
| Cr Radial Dynamic [lbf] | 3079760 |
| C0r Radial Static [lbf] | 3857568 |
The FCD 126184515 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.















