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 |
|---|---|---|---|---|---|---|---|
| 3806/650-2 | 650 | 915 | 674 | 15700 | 44800 | 1433 | |
| 3806/650/HCYAD | 650 | 1030 | 560 | 17600 | 39300 | 1735 | |
| 3806/650/HC | 650 | 1030 | 560 | 17600 | 39300 | 1720 | |
| 3806/650/HCC9 | 650 | 1030 | 560 | 17600 | 39300 | 1723 | |
| 3806/650/HCC9-1 | 650 | 1030 | 560 | 17600 | 39300 | 1712 | |
| 3806/660-1 | 660 | 855 | 318.5 | 6960 | 18200 | 493 | |
| 3806/660 | 660 | 855 | 319.192 | 6070 | 16600 | 491 | |
| 3806/660X4/HC | 660.01 | 855.015 | 319.99 | 5220 | 17000 | 495 | |
| 3819/670/HC | 670 | 900 | 412 | 5770 | 24600 | 773 | |
| 3806/685.8-XRS/HCC9 | 685.8 | 876.3 | 355.6 | 5800 | 14500 | 490 | |
| 3806/710/HCYA2 | 710 | 900 | 410 | 5880 | 27500 | 650 | |
| 3806/711X4-XRS | 711.2 | 914.4 | 420 | 7900 | 20100 | 674 | |
| 331752 | 730 | 940 | 500 | 11900 | 35600 | 926 | |
| 3806/750/HCEC9 | 750 | 950 | 410 | 9560 | 27780 | 703 | |
| 3811/750 | 750 | 1220 | 840 | 17700 | 68500 | 3985 | |
| 3811/750-RS/HCC9 | 750 | 1220 | 840 | 24600 | 64500 | 3880 | |
| 3806/780/HCC9 | 780 | 1220 | 840 | 23200 | 70500 | 3810 | |
| 3806/850 | 850 | 1360 | 910 | 34200 | 82600 | 5443 | |
| 3806/1070 | 1070 | 1400 | 889.762 | 29700 | 99000 | 3735 | |
| 3806/1080 | 1080 | 1450 | 950 | 32900 | 106000 | 4455 |