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 |
|---|---|---|---|---|---|---|---|
| 381076X2/YA6 | 380 | 560 | 360 | 6000 | 13500 | 296 | |
| 380676/HC | 380 | 620 | 388 | 3800 | 11600 | 443 | |
| 381176/HC | 380 | 620 | 420 | 5550 | 12600 | 485 | |
| 381176/HCC9 | 380 | 620 | 420 | 5550 | 12600 | 485 | |
| 381176/HCYA2-1 | 380 | 620 | 420 | 5550 | 12600 | 484 | |
| 381176/HCYA2 | 380 | 620 | 420 | 5550 | 12600 | 484 | |
| 380679X2/HC | 395 | 545 | 288.7 | 2340 | 6500 | 194 | |
| 380679X2/HCYA7 | 395 | 545 | 288.7 | 2340 | 6500 | 194 | |
| 380679X2/HCC9 | 395 | 545 | 288.7 | 2340 | 6500 | 194 | |
| 380679/HCYA3 | 395 | 545 | 288.9 | 2340 | 6500 | 194 | |
| 380680/HC-1 | 400 | 540 | 280 | 2690 | 6500 | 187 | |
| 380680/HC | 400 | 540 | 400 | 6980 | 13300 | 262 | |
| 381080/HC | 400 | 600 | 356 | 3740 | 12400 | 345 | |
| 380684/HC | 420 | 560 | 437 | 7900 | 16300 | 298 | |
| 380684-XRS/HC | 420 | 560 | 437 | 4800 | 15200 | 292 | |
| 380684/HCE-1 | 420 | 592 | 432 | 6600 | 16300 | 375 | |
| 381084 | 420 | 620 | 356 | 4560 | 11700 | 369 | |
| 381184X2J/HC | 420 | 700 | 480 | 5610 | 18200 | 749 | |
| 381184 | 420 | 700 | 480 | 10500 | 11900 | 755 | |
| 380688-3 | 440 | 580 | 420 | 5900 | 17300 | 302 |