Four Row Tapered Roller Bearings represent the highest load capacity design in the tapered roller bearing family, engineered for extreme heavy-duty applications with severe shock loads, high temperatures, and continuous 24/7 operation.
The multi-row integrated structure distributes load across four rows of tapered rollers, significantly increasing radial and axial load capacity compared to single-row and double-row designs. Optional high-strength alloy steel and advanced heat-treated materials ensure stable performance under extreme industrial conditions.
Structural Features
- Four-row tapered roller configuration with integrated high-rigidity housing design
- Superior load distribution for extreme radial, axial, and impact loads
- High resistance to fatigue, misalignment, and vibration
- Optional high-temperature lubrication and reinforced sealing systems
- Large diameter and custom-size manufacturing capability
Applications
- Steel rolling mills (work rolls and backup rolls)
- Heavy-duty mining and crushing equipment
- Large-scale rotary kiln support systems
- Port cranes and heavy lifting equipment
- Extreme-load industrial transmission systems
Product Specifications
| Inquiry | Bearing No. | ID | OD | T | Cr | Cor | Mass |
|---|---|---|---|---|---|---|---|
| 380688-3 | 440 | 580 | 420 | 5900 | 17300 | 302 | |
| 381188X1-XRS/HC-1 | 440 | 590 | 480 | 8000 | 19000 | 359 | |
| 380688/HCC9 | 440 | 620 | 454 | 6650 | 18800 | 432 | |
| 380688/HC-1 | 440 | 620 | 454 | 6650 | 18800 | 432 | |
| 380688/HCC9YA8 | 440 | 620 | 454 | 6500 | 20200 | 422 | |
| 380688/HCYA7 | 440 | 650 | 355 | 3680 | 12100 | 385 | |
| 381088X2/HG | 440 | 650 | 355 | 5000 | 12300 | 402 | |
| 380690-2 | 450 | 580 | 450 | 6000 | 19300 | 282 | |
| 380690-3 | 450 | 595 | 368 | 5400 | 16000 | 287 | |
| 381992X3/YA | 460 | 610 | 360 | 6100 | 16400 | 291 | |
| 380692-2 | 460 | 610 | 400 | 6000 | 17000 | 316 | |
| 381992/HC | 460 | 620 | 310 | 6160 | 3450 | 260 | |
| 381992/HCC9 | 460 | 620 | 310 | 6160 | 3450 | 260 | |
| 380692-3 | 460 | 625 | 421 | 7050 | 19800 | 382 | |
| 380692/HCC9-1 | 460 | 650 | 474 | 4950 | 20000 | 506 | |
| 381192X3/HC | 460 | 730 | 440 | 6160 | 14800 | 663 | |
| 381192X3/HCC9 | 460 | 730 | 440 | 6160 | 14800 | 663 | |
| 380695 | 475 | 600 | 368 | 5100 | 16000 | 251 | |
| 380695-1 | 475 | 660 | 450 | 8410 | 22000 | 462 | |
| 381096 | 480 | 700 | 420 | 4730 | 16900 | 582 |