Four Row Taper Roller Bearing
Applications
Four-row tapered roller bearings are specifically designed for heavy-duty applications requiring high radial and axial load capacity. They are widely used in:
Steel & Metal Industry – Rolling mills, continuous casting machines
Heavy Machinery – Mining, construction, and material handling equipment
Railway – Axle systems and wheel hubs for locomotives and freight cars
Industrial Gearboxes – High-load power transmission systems
Paper Mills – Press and drying cylinders
Key Benefits
High Load Capacity – Supports extreme radial and axial loads in both directions
Exceptional Rigidity – Ensures precise shaft alignment and minimizes deflection
Enhanced Durability – Special heat-treated materials provide superior wear resistance
Optimized Performance – Reduces friction for improved energy efficiency
Easy Maintenance – Designed for simple assembly and disassembly, minimizing downtime
A four row taper roller bearing is a type of rolling element bearing that is designed to support high radial and axial loads simultaneously. This type of bearing consists of four rows of tapered rollers, making it capable of handling heavy loads in both directions. The inner and outer rings of the bearing are designed to accommodate the tapered rollers, providing smooth rotation and reduced friction.

Four row taper roller bearings are commonly used in heavy machinery and industrial applications where large forces and loads are present. These bearings are known for their high load-carrying capacity and durability, making them suitable for demanding operating conditions.
| Current | Original | d (mm) | D (mm) | T (mm) | Cr (KN) | Cor (KN) | Grease (r/min) | Oil (r/min) | Weight (kg) |
| 382930 | 2077930 | 150 | 210 | 165 | 440 | 845 | 800 | 1000 | 21.2 |
| 382932 | 2077932E | 160 | 220 | 165 | 440 | 845 | 780 | 920 | 19.7 |
| 382034 | 2077134 | 170 | 260 | 230 | 908 | 1720 | 670 | 850 | 39.5 |
| 380636 | 77736 | 180 | 280 | 180 | 860 | 1630 | 650 | 820 | 36 |
| 380640X2 | – | 200 | 282 | 206 | 1200 | 3400 | 620 | 750 | 38.6 |
| 380640 | 77740 | 200 | 310 | 200 | 1970 | 5520 | 590 | 700 | 55.5 |
| – | 77741 | 205 | 320 | 205 | 860 | 1630 | 550 | 680 | 55.4 |
| 382044 | 2077144 | 220 | 340 | 305 | 1500 | 3020 | 500 | 630 | 98 |
| 382048 | 2077148 | 240 | 360 | 310 | 1530 | 3120 | 450 | 560 | 91 |
| 381050 | 77150 | 250 | 385 | 255 | 1390 | 2570 | 430 | 530 | 108 |
| 382952 | 2077952 | 260 | 360 | 265 | 1270 | 2710 | 450 | 560 | 76.3 |
| 380652 | 77752X2 | 260 | 370 | 220 | 1690 | 3150 | 450 | 560 | 75.9 |
| – | 77752 | 260 | 400 | 255 | 1850 | 3720 | 430 | 530 | 117 |
| 382052 | 2077152 | 260 | 400 | 345 | 1970 | 3970 | 430 | 530 | 153 |
| 381156 | 1077756 | 280 | 460 | 324 | 2190 | 4050 | 360 | 450 | 200 |
| 382960 | 2077960 | 300 | 420 | 300 | 1690 | 3730 | 380 | 480 | 130 |
| 382060 | 2077160 | 300 | 460 | 390 | 2310 | 4880 | 360 | 450 | 219 |
| 380660 | 77760U | 300 | 500 | 350 | 2730 | 6500 | 340 | 430 | 263.5 |
| 381160 | 1077760 | 300 | 500 | 370 | 2610 | 4840 | 340 | 430 | 285 |
| 382064 | 2077164 | 320 | 480 | 380 | 2310 | 4880 | 340 | 430 | 234 |
| 382968 | 2077968 | 340 | 460 | 310 | 1770 | 4130 | 340 | 430 | 145 |
| 381068 | 77168 | 340 | 520 | 325 | 2310 | 4340 | 320 | 400 | 234 |
| 381168 | 1077768 | 340 | 580 | 425 | 3530 | 6500 | 280 | 360 | 441 |
| – | 77872 | 360 | 480 | 375 | 3600 | 7200 | 300 | 380 | 196 |
| 381072 | 77172 | 360 | 540 | 325 | 2430 | 4670 | 300 | 380 | 248 |
| 381176 | 1077776 | 380 | 620 | 420 | 3630 | 6860 | 240 | 320 | 487 |
| – | 77779 | 395 | 545 | 288.7 | 2500 | 6850 | 300 | 400 | 195.5 |
| 380680 | 77780 | 400 | 540 | 400 | 5350 | 1500 | 210 | 290 | 261.5 |
| 381080 | 77180 | 400 | 600 | 356 | 3000 | 6080 | 240 | 320 | 317 |
| 381184 | 1077784 | 420 | 700 | 480 | 5220 | 10300 | 190 | 260 | 760 |
| 380688 | 77788 | 440 | 650 | 355 | 4550 | 12300 | 200 | 280 | 384.7 |
| 381088 | 77188 | 440 | 650 | 376 | 3090 | 6480 | 200 | 280 | 401 |
| 381992 | 1077992 | 460 | 620 | 310 | 2430 | 5250 | 200 | 280 | 173 |
| 381092 | 77192 | 460 | 680 | 410 | 3710 | 7490 | 180 | 240 | 476 |
| 381996 | 1077996 | 480 | 650 | 338 | 2450 | 5400 | 190 | 260 | 301 |
| 381096 | 77196 | 480 | 700 | 420 | 4230 | 9000 | 170 | 220 | 547 |
| 3810/500 | 771/500 | 500 | 720 | 420 | 4250 | 9120 | 160 | 200 | 565 |
| 3810/530 | 771/530 | 530 | 780 | 450 | 5430 | 11400 | 140 | 180 | 744 |
| 3811/530 | 10777/530 | 530 | 870 | 590 | 7170 | 14500 | 120 | 160 | 1422 |
| 3819/560 | 10779/560 | 560 | 750 | 368 | 3170 | 7410 | 140 | 180 | 456 |
| 3811/560 | 10777/560 | 560 | 920 | 620 | 8670 | 14500 | 100 | 140 | 1635 |
| 3819/600 | 10779/600 | 600 | 800 | 380 | 3950 | 9710 | 120 | 160 | 536 |
| 3810/600 | 771/600 | 600 | 870 | 480 | 6000 | 13300 | 100 | 140 | 995 |
| 3811/600 | 10777/600 | 600 | 980 | 650 | 9840 | 20400 | 90 | 120 | 1970 |
| 3819/630 | 10779/630 | 630 | 850 | 426 | 4670 | 11000 | 100 | 140 | 720 |
| 3810/630 | 771/630 | 630 | 920 | 515 | 6650 | 14900 | 95 | 130 | 1158 |
| 3811/630 | 10777/630 | 630 | 1030 | 670 | 11100 | 22200 | 85 | 110 | 2201 |
| 3819/670 | 10779/670 | 670 | 900 | 412 | 5030 | 12400 | 95 | 130 | 959 |
| 3811/670 | 10777/670 | 670 | 1090 | 710 | 12100 | 22200 | 75 | 95 | 2665 |
| 3810/710 | 771/710 | 710 | 1030 | 555 | 8190 | 18800 | 75 | 95 | 1568 |
| 3811/710 | 10777/710 | 710 | 1150 | 750 | 13200 | 28300 | 67 | 85 | 3227 |
| 3810/750 | 771/750 | 750 | 1090 | 605 | 9650 | 22300 | 70 | 90 | 1874 |
| 3811/750 | 10777/750 | 750 | 1220 | 840 | 16900 | 37800 | 48 | 80 | 3994 |
Advantages of Four Row Taper Roller Bearing
One of the key advantages of using four row taper roller bearings is their ability to support heavy radial and axial loads. The design of these bearings allows for efficient distribution of forces, resulting in smoother operation and longer bearing life. Additionally, the tapered rollers help reduce sliding friction, which can minimize wear and heat generation.
Another advantage of four row taper roller bearings is their versatility in accommodating misalignment and shaft deflection. This flexibility allows for better performance in applications where alignment issues may arise, improving overall system efficiency and reliability.
Applications of Four Row Taper Roller Bearing
Four row taper roller bearings are commonly used in industries such as steel manufacturing, mining, construction, and power generation. These bearings are ideal for heavy-duty applications where high load capacities and reliability are essential. Some specific applications include rolling mills, gearboxes, crane wheels, and large industrial conveyors.
The robust design and superior load-carrying capabilities of four row taper roller bearings make them a preferred choice for equipment subjected to extreme operating conditions and demanding environments.

