313812 180x260x168 Bearing
Four-Row Cylindrical Roller Bearings
The 313812 Four-Row Cylindrical Roller Bearing is designed for high-performance applications, providing exceptional load capacity and durability. This bearing is commonly used in industries such as steel mills, mining, and paper manufacturing, where it supports heavy radial loads and ensures smooth, reliable operation under extreme conditions. Its four-row design enhances its ability to handle larger loads while maintaining stability and minimizing friction. With precision engineering and a robust construction, the 313812 bearing offers a long service life, reducing maintenance needs and ensuring high operational efficiency.
Performance Overview of the 313812 Bearings
| Specifications | Details |
|---|---|
| Brand | AMIGO 313812 | Interchangeable With: SKF 313812 |
| Bore | 180 Millimeter |
| Other Features | Plain Inner Ring |
| Outside Diameter | 202 Millimeter |
| Relubricatable | Yes |
| Precision Class | RBEC 1 | ISO P0 |
| Width | 168 Millimeter |
| Number of Rows of Rollers | Quadruple Row |
| Retainer | Not Applicable |
| Separable | No |
| Bore Profile | Straight |
| Profile | Inner Ring Only |
| Snap Ring | No |
| Internal Clearance | C3-Loose | C4-Extra Loose |
| Dimensions(mm) | 180x202x168 |
| Specifications | Details |
|---|---|
| Brand | AMIGO 313812 | Interchangeable With: SKF 313812 |
| Bore | 7.087 Inch |
| Other Features | Plain Inner Ring |
| Outside Diameter | 7.953 Inch |
| Relubricatable | Yes |
| Precision Class | RBEC 1 | ISO P0 |
| Width | 6.614 Inch |
| Number of Rows of Rollers | Quadruple Row |
| Retainer | Not Applicable |
| Separable | No |
| Bore Profile | Straight |
| Profile | Inner Ring Only |
| Snap Ring | No |
| Internal Clearance | C3-Loose | C4-Extra Loose |
| Dimensions(in) | 7.087x7.953x6.614 |
Specifications Overview of the 313812 Bearings
| Specifications | Details |
|---|---|
| Bore diameter | 180 mm |
| Outside diameter | 260 mm |
| Total bearing width over inner ring(s) | 168 mm |
| Total bearing width over outer ring(s) | 168 mm |
| Outer ring shoulder diameter | ≈232.8 mm |
| Raceway diameter inner ring | 202 mm |
| Corner radius/chamfer inner ring | min. 2.1 mm |
| Chamfer dimension on the outer ring | min. 2.1 mm |
| Permissible axial displacement | 3 mm |
| Specifications | Details |
|---|---|
| Bore diameter | 7.087 in |
| Outside diameter | 10.236 in |
| Total bearing width over inner ring(s) | 6.614 in |
| Total bearing width over outer ring(s) | 6.614 in |
| Outer ring shoulder diameter | 9.165 in |
| Raceway diameter inner ring | 7.953 in |
| Corner radius/chamfer inner ring | 0.083 in |
| Chamfer dimension on the outer ring | 0.083 in |
| Permissible axial displacement | 0.118 in |
Applicable Machines and Industries
1. Steel Rolling Mills
- Role: The 313812 Four-Row Cylindrical Roller Bearing is used to support high radial loads in the roll necks of steel rolling mills, ensuring smooth rotation and precision alignment during high-load operations.
- Replaceable Bearing Brands/Series: SKF 313812/BC4-0114, FAG 507536, Timken 180RY1521
2. Paper Manufacturing Machines
- Role: These bearings are installed in paper manufacturing machines to support heavy rollers, enabling efficient handling of large, continuous loads while minimizing downtime.
- Replaceable Bearing Brands/Series: NSK 180RV2601, NTN 4R3628, SKF 313812/BC4-0114
3. Cement Kilns
- Role: In cement kilns, the 313812 bearing supports the rotation of the kiln drum under extreme conditions, handling heavy loads and high temperatures.
- Replaceable Bearing Brands/Series: URB 4NNU5136PFC3W8, Timken 180RY1521, SKF 313812/BC4-0114
4. Mining Conveyors
- Role: This bearing is utilized in mining conveyor systems, providing reliable support for the large conveyor belts that transport heavy loads of ore and minerals.
- Replaceable Bearing Brands/Series: KOYO 313812W/36FC26168, NTN 4R3628, FAG 507536
5. Wind Turbines
- Role: In wind turbines, the 313812 bearing is responsible for supporting the gearbox and rotating components, ensuring the stability and efficiency of the turbine even under fluctuating wind loads.
- Replaceable Bearing Brands/Series: SKF 313812/BC4-0114, NSK 180RV2601, Timken 180RY1521
6. Plastic Extrusion Machines
- Role: The 313812 bearing is used in the screw and barrel assemblies of plastic extrusion machines, supporting high-speed operations and maintaining precise alignment.
- Replaceable Bearing Brands/Series: FAG 507536, SKF 313812/BC4-0114, KOYO 313812W/36FC26168
313812 Bearing Cross Reference and Interchange
| Brand | Bearing Model |
|---|---|
| SKF | 313812/BC4-0114 |
| FAG | 507536 |
| NSK | 180RV2601 |
| NTN | 4R3628 |
| KOYO | 313812W/36FC26168 |
| TIMKEN | 180RY1521 |
| URB | 4NNU5136PFC3W8 |
This table summarizes the bearing cross-reference and interchange guide for the 313812 Four-Row Cylindrical Roller Bearings. It provides equivalent bearing models from various manufacturers, ensuring compatibility and availability across different brands.
Choosing the Right Bearing
When comparing the Amigo 313812 bearing to other similar models, several key advantages make it the superior choice for various applications:
When to Choose Amigo 313812?
- Heavy Load Applications: Choose the Amigo 313812 when dealing with heavy radial loads, such as in steel mills and mining.
- High-Speed Machines: Ideal for high-speed applications with a speed rating of 630 r/min.
- Low Maintenance: If relubrication is a concern, this bearing performs well without requiring frequent maintenance.
- Precision: For machines that require high precision, the Class 5 tolerance ensures smooth and reliable operation.
- Cost-Effective: Amigo 313812 provides similar performance to SKF but at a more affordable price.
The Amigo 313812 stands out due to its high load rating and machined metal construction, making it highly durable in demanding environments. Compared to other models like FAG or KOYO, it offers a better balance between precision and maintenance, while also being more cost-effective than its SKF counterpart, with identical performance.
| Feature | Amigo 313812 | SKF 313812 | FAG 507536 | NSK 180RV2601 | KOYO 313812W/36FC26168 |
|---|---|---|---|---|---|
| Load Rating (kN) | 1560 | 1560 | 1500 | 1450 | 1550 |
| Speed (r/min) | 630 | 630 | 600 | 580 | 620 |
| Material | Machined Metal | Machined Metal | Steel | Machined Metal | Steel |
| Clearance | C3 | C3 | C4 | C3 | C4 |
| Lubrication | None | None | Sealed | None | Sealed |
| Tolerance Class | Class 5 (P5) | Class 5 (P5) | Class 4 (P4) | Class 5 (P5) | Class 4 (P4) |
| Number of Rows | 4 | 4 | 4 | 4 | 4 |
| Relubrication Feature | Without | Without | With | Without | With |
Recommended Products for Optimal Performance
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Why Amigo 313812 Bearings Are the Top Choice
We have been using the Amigo 313812 bearings in our steel rolling mill, and the performance has been exceptional. The bearings feel just as reliable as the SKF ones we previously used, handling high loads and intense conditions effortlessly. Great value for the quality!
Ariadne Bennett
The Amigo 313812 bearings we installed in our paper manufacturing plant have worked flawlessly. The durability and smooth operation are nearly identical to the more expensive brands like NSK, and we’ve had no issues since switching. Very impressed!
Lillian Parker
I was skeptical about switching to Amigo 313812 bearings, but after using them in our heavy-duty conveyor systems, I can confidently say they perform just as well as the Timken bearings we used before. Excellent quality at a fraction of the cost!
Clara Donnelly
We replaced our old bearings with Amigo 313812, and the performance has been fantastic. They are comparable to SKF in every way, especially in terms of load capacity and precision. A great alternative for anyone looking for high-quality bearings!
Imogen Ward
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