313535B bearings ( 536.176 mm x 762.03 mm x 558.8 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 | 313535B |
| Interchangeable | SKF 313535B |
| Bearing Type | Four-row cylindrical roller bearing for rolling mills |
| Cage | Stamping steel cage |
| Seal | Open |
| Bore Type | Cylindrical bore |
| Design variant | E.6/WI |
| Series | 3135..B |
| Coating | No |
| Units | Metric |
| Weight [lb] | 1829.818 |
| Bearing part | Complete |
| Heat stabilized | 150 °C(300 °F) |
| Cr Radial Dynamic [lbf] | 2562414 |
| C0r Radial Static [lbf] | 6518663 |
| Pu Fatigue load limit [lbf] | 485247 |
| Dimension | |
| d φ Inside [inch] | 21.109 |
| D Φ Outside [inch] | 30.001 |
| B Inner Width [inch] | 22.000 |
| C Outer Width [inch] | 22.000 |
| D1 [inch] | 27.008 |
| F [inch] | 23.543 |
| r1, r2(min.) [mm] | 16x20° |
| r3, r4(min.) [mm] | 4 |
| b angular groove [inch] | 0.657 |
| K lubrication hole [inch] | 0.354 |
| kr Calculation coefficient | 0.68 |
The 313535B 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.















