36FC25156A Bore 180 Mm, Four-row Cylindrical Roller Bearing For Rolling Mill, Machined Brass Cage
The 36FC25156A Four-row cylindrical roller bearings is suitable for heavy machinery applications that bear huge radial loads. Classic applications include: support rolls of rolling mills, large gearboxes, heavy machine tool spindles, wind turbine spindles, ship propulsion shafts, and rotor supports for high-power compressors.
The 36FC25156A bearing is a Four-row cylindrical roller bearing for cold rolling mill, hot rolling mill, billet mill with an inner diameter of 180 mm , an outer diameter of 250 mm, a width of 156 mm. Bearing steel rings, Bearing steel rolling mlement. It primarily bears radial, Its dynamic radial rated load is approximately 1020000 N, its static radial rated load is approximately 2130000 N. It uses C3 standard radial clearance, Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
Interchange code: FC3650156 (China), 180RV2501 (NSK), 4R3625 (NTN), 36FC25156A (KOYO)
36FC25156A bearings ( 180 mm x 250 mm x 156 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 | 36FC25156A |
| Interchangeable | KOYO 36FC25156A |
| Desgin Figure | 1-2 |
| Cage | Machined brass cage |
| Radial internal clearance | C3 |
| Seal | Open |
| Bearing Type | Four-row cylindrical roller bearing for cold rolling mill, hot rolling mill, billet mill |
| Equivalent | FC3650156 (China) 180RV2501 (NSK) 4R3625 (NTN) 36FC25156A (KOYO) |
| Design type | Outer ring with rib, One inner ring |
| Bearing Weight [lb] | 51.367 |
| d φ Inside [inch] | 7.087 |
| D Φ Outside [inch] | 9.843 |
| B Width [inch] | 6.142 |
| Fw Raceway diameter inner ring [inch] | 7.874 |
| C [inch] | 6.142 |
| r min Chamfer outer ring | 2 mm |
| r1 min Chamfer inner ring | 2 mm |
| Cr Radial Dynamic [lbf] | 229296 |
| C0r Radial Static [lbf] | 478824 |
| Mounting dimensions | |
| da min shaft [inch] | 7.480 |
| Da max housing [inch] | 9.449 |
| Da min housing [inch] | 9.213 |
| ra max Fillet radius [inch] | 0.079 |
| rb max Fillet radius [inch] | 0.079 |
The 36FC25156A 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.
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