FCD106156570 bearings ( 530 mm x 780 mm x 570 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 | FCD106156570 |
| Old Code | 6727/530 |
| Interchangeable | ZWZ FCD106156570 |
| 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] | 2103.188 |
| d φ Inside [inch] | 20.866 |
| D Φ Outside [inch] | 30.709 |
| B Width [inch] | 22.441 |
| Fw Raceway diameter inner ring [inch] | 23.661 |
| C [inch] | 22.441 |
| D1 [inch] | 27.441 |
| b(max) [inch] | 0.878 |
| k(max) [inch] | 0.472 |
| r min Chamfer inner ring | 3 mm |
| r1 min Chamfer outer ring | 14*20* mm |
| Cr Radial Dynamic [lbf] | 2854960 |
| C0r Radial Static [lbf] | 7306000 |
The FCD106156570 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.















