FC2030106 bearings ( 100 mm x 150 mm x 106 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 | FC2030106 |
| Old Code | 672720 |
| Interchangeable | ZWZ FC2030106 |
| 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 | FC2030106 (China) |
| Design type | FC = two ribs on the outer ring, single on the inner ring without ribs |
| Bearing Weight [lb] | 14.705 |
| Inner ring Weight [lb] | 3.924 |
| d φ Inside [inch] | 3.937 |
| D Φ Outside [inch] | 5.905 |
| B Width [inch] | 4.173 |
| Fw Raceway diameter inner ring [inch] | 4.449 |
| C [inch] | 4.173 |
| D1 [inch] | 5.197 |
| b(max) [inch] | 0.315 |
| k(max) [inch] | 0.157 |
| r min Chamfer inner ring | 1.1 mm |
| r1 min Chamfer outer ring | 1.5 mm |
| Cr Radial Dynamic [lbf] | 95540 |
| C0r Radial Static [lbf] | 200072 |
| nB Speed ratings (grease) [rpm] | 3400 |
| nG Speed ratings (oil) [rpm] | 4000 |
The FC2030106 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.















