Cylindrical Roller Bearing
Four Row Cylindrical Roller Bearing
Four-row cylindrical roller bearings are one of the main bearings for rolling mills, which consist of three kinds of structures: FC, FCD, and FCDP, which have compact design, good rigidity, and high radial load capacity but can not take the axial load. Our Four-row Cylindrical Roller Bearings are especially suitable for high-speed and high-precision rollers, such as wire mills, profile mills, sheet cold rolling mills, etc. Since the inner ring has no flange, the inner circle and outer ring assembly can be installed separately (with a complete set of rollers and cages); bearing cleaning and disassembly are very convenient.
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Four-row cylindrical roller bearings are one of the main bearings for rolling mills, which consist of three kinds of structures: FC, FCD, and FCDP, which have a compact design, good rigidity, and high radial load capacity but can not take the axial load. Our Four-row Cylindrical Roller Bearings are especially suitable for high-speed and high-precision rollers, such as wire mills, profile mills, sheet cold rolling mills, etc. Since the inner ring has no flange, the inner circle and outer ring assembly can be installed separately (with a complete set of rollers and cages); bearing cleaning and disassembly are very convenient.
Main Types:
FC type:Â Â small bearing type (d:90-280 mm).
This structure consists of one inner ring, two outer rings, four rows of rolling bodies, and two cages.
FCD type:Â medium and large bearings (d:250-350mm).
This structure consists of two inner rings, two outer rings, four rows of rolling bodies, and two cages.
FCDP type:Â with super large bearings (d:390-1000mm).
This structure consists of two inner rings, two outer rings, four rows of rolling bodies, one middle ring, two edge rings, and four cages.
Bearing Parameters
Dimensions (mm) | Basic Load Ratings (kN) | Bearing No. | Mass(kg) | ||||||
d | D | B | F | r | r1 | Cr | C0r | ≈ | |
min | min | ||||||||
200 | 290 | 192 | 226 | 2.5 | 2.5 | 1430 | 3450 | FC 4058192 | 42.5 |
210 | 290 | 192 | 236 | 2.5 | 2.5 | 1365 | 3565 | FC 4258192 | 39.5 |
220 | 310 | 192 | 246 | 2.5 | 2.5 | 1500 | 3760 | FC 4462192 | 46.9 |
220 | 310 | 225 | 245 | 2.5 | 2.5 | 1695 | 4410 | FCD 4462225 | 54.9 |
220 | 320 | 160 | 245 | 3 | 3 | 1385 | 3165 | FC 4464160 | 46.5 |
220 | 320 | 210 | 248 | 2.5 | 2.5 | 1710 | 4155 | FCD 4464210 | 60.5 |
230 | 330 | 206 | 260 | 2.5 | 2.5 | 1720 | 4245 | FCD 4666206 | 58.3 |
240 | 330 | 220 | 270 | 3 | 3 | 1735 | 4665 | FCD 4866220 | 56.8 |
240 | 340 | 220 | 268 | 3 | 3 | 1850 | 4710 | FCD 4868220 | 63.6 |
240 | 360 | 220 | 272 | 2.5 | 2.5 | 2060 | 4800 | FCD 4872220 | 79.6 |
250 | 350 | 220 | 278 | 3 | 3 | 1885 | 4885 | FCD 5070220 | 66 |
260 | 360 | 260 | 287 | 2.5 | 2.1 | 2185 | 5985 | FCD 5272260 | 81.5 |
260 | 370 | 220 | 292 | 3 | 3 | 2030 | 5110 | FCD 5274220 | 77.1 |
260 | 380 | 280 | 294 | 3 | 3 | 2580 | 6560 | FCD 5276280 | 109 |
260 | 400 | 290 | 296 | 4 | 2 | 2910 | 6915 | FCD 5280290 | 135 |
280 | 350 | 208 | 298 | 2.5 | 2.5 | 1540 | 4995 | FCD 5670208 | 46.4 |
280 | 390 | 220 | 312 | 3 | 3 | 2105 | 5465 | FCD 5678220 | 81.3 |
280 | 390 | 275 | 312 | 2.5 | 2.5 | 2505 | 6830 | FCD 5678275 | 105 |
280 | 420 | 280 | 323 | 4 | 4 | 2930 | 7130 | FCD 5684280 | 139 |
300 | 400 | 300 | 328 | 3 | 3 | 2620 | 7875 | FCD 6080300 | 104 |
300 | 420 | 240 | 332 | 3 | 3 | 2455 | 6400 | FCD 6084240 | 105 |
300 | 420 | 300 | 332 | 3 | 3 | 2920 | 7995 | FCD 6084300 | 130 |
300 | 430 | 240 | 338 | 3 | 3 | 2570 | 6445 | FCD 6086240 | 115 |
300 | 460 | 270 | 344 | 3 | 3 | 3190 | 7420 | FCD 6092270 | 162 |
320 | 450 | 240 | 358 | 3 | 3 | 2655 | 6835 | FCD 6490240 | 125 |
320 | 460 | 340 | 360 | 3 | 3 | 3635 | 9750 | FCD 6492340 | 178 |
330 | 440 | 200 | 360 | 3 | 3 | 2115 | 5775 | FC 6688200 | 83.6 |
330 | 460 | 340 | 365 | 4 | 4 | 3530 | 9955 | FCD 6692340 | 181 |
340 | 480 | 350 | 378 | 4 | 4 | 3830 | 10605 | FCD 6896350 | 211 |
360 | 480 | 290 | 388 | 3 | 3 | 3100 | 9135 | FCD 7296290 | 148 |
360 | 510 | 370 | 400 | 4 | 4 | 4280 | 11880 | FCD 72102370 | 244 |
360 | 510 | 400 | 397 | 5 | 5 | 4545 | 12845 | FCD 72102400 | 262 |
370 | 480 | 230 | 400 | 5 | 5 | 2490 | 7380 | FCD 7496230 | 106 |
370 | 480 | 250 | 401 | 3 | 3 | 2660 | 8025 | FCD 7496250 | 118 |
370 | 520 | 380 | 409 | 5 | 5 | 4430 | 12510 | FCD 74104380 | 256 |
370 | 520 | 400 | 409 | 5 | 5 | 4610 | 13170 | FCD 74104400 | 273 |
380 | 520 | 280 | 417 | 4 | 4 | 3395 | 9385 | FCD 76104280 | 174 |
380 | 520 | 290 | 418 | 4 | 4 | 3490 | 9720 | FCD 76104290 | 185 |
380 | 520 | 300 | 416 | 4 | 4 | 3580 | 10055 | FCD 76104300 | 210 |
380 | 540 | 400 | 422 | 4 | 4 | 4850 | 13570 | FCD 76108400 | 325 |
400 | 560 | 400 | 446 | 5 | 5 | 4970 | 14215 | FCD 80112400 | 303 |
400 | 560 | 410 | 445 | 4 | 4 | 5070 | 14575 | FCD 80112410 | 349 |
400 | 590 | 420 | 450 | 4 | 4 | 5715 | 15185 | FCD 80118420 | 399 |
420 | 560 | 280 | 457 | 4 | 4 | 3560 | 10290 | FCDP 84112280 | 189 |
420 | 580 | 230 | 466 | 4 | 4 | 3310 | 8545 | FCDP 84116230 | 181 |
420 | 600 | 440 | 470 | 6 | 2.5 | 5875 | 16530 | FCDP 84120440 | 423 |
420 | 620 | 400 | 478 | 5 | 5 | 5810 | 15190 | FCDP 84124400 | 410 |
440 | 620 | 450 | 487 | 5 | 5 | 6115 | 17630 | FCDP 88124450 | 450 |
460 | 620 | 400 | 502 | 4 | 4 | 5315 | 16155 | FCDP 92124400 | 383 |
460 | 620 | 460 | 502 | 4 | 4 | 5925 | 18575 | FCDP 92124460 | 417 |
460 | 650 | 470 | 509 | 5 | 5 | 6675 | 19270 | FCDP 92130470 | 540 |
470 | 660 | 470 | 517 | 5 | 5 | 6745 | 19650 | FCDP 94132470 | 529 |
480 | 600 | 236 | 510 | 3 | 3 | 3035 | 9715 | FCDP 96120236 | 155 |
480 | 650 | 420 | 523 | 5 | 5 | 5840 | 17725 | FCDP 96130420 | 423 |
480 | 680 | 420 | 528 | 6 | 6 | 7200 | 19000 | FCDP 96136420 | 500 |
480 | 680 | 500 | 532 | 6 | 6 | 7365 | 21410 | FCDP 96136500 | 640 |
500 | 690 | 470 | 547 | 5 | 5 | 6945 | 20785 | FCDP 100138470 | 590 |
500 | 690 | 510 | 552 | 5 | 5 | 7400 | 22555 | FCDP 100138510 | 640 |
500 | 700 | 515 | 554 | 5 | 5 | 7690 | 22880 | FCDP 100140515 | 680 |
500 | 710 | 480 | 558 | 6 | 6 | 7490 | 21425 | FCDP 100142480 | 675 |
500 | 720 | 530 | 568 | 5 | 5 | 8320 | 23765 | FCDP 100144530 | 780 |
510 | 670 | 320 | 554 | 5 | 5 | 4695 | 14210 | FCDP 102134320 | 335 |
510 | 700 | 540 | 558 | 6 | 6 | 7810 | 24315 | FCDP 102140540 | 689 |
520 | 700 | 540 | 564 | 6 | 6 | 7635 | 24640 | FCDP 104140540 | 658 |
520 | 720 | 550 | 566 | 5 | 5 | 8250 | 25325 | FCDP 104144550 | 715 |
520 | 735 | 535 | 574.5 | 5 | 5 | 8425 | 24800 | FCDP 104147535 | 740 |
530 | 700 | 540 | 574 | 6 | 6 | 7445 | 24965 | FCDP 106140540 | 626 |
530 | 760 | 520 | 587 | 6 | 6 | 8655 | 24680 | FCDP 106152520 | 800 |
530 | 780 | 570 | 601 | 6 | 6 | 9770 | 27290 | FCDP 106156570 | 1010 |
550 | 800 | 520 | 622 | 6 | 6 | 9260 | 25735 | FCDP 110160520 | 965 |
560 | 680 | 360 | 590 | 3 | 3 | 4545 | 17145 | FCDP 112136360 | 265 |
570 | 800 | 514 | 626 | 2.5 | 6 | 8885 | 26055 | FCDP 114160514 | 849 |
570 | 815 | 594 | 628 | 6 | 6 | 10320 | 30295 | FCDP 114163594 | 1040 |
600 | 820 | 575 | 660 | 7.5 | 7.5 | 9675 | 30420 | FCDP 120164575 | 941 |
600 | 870 | 540 | 672 | 7.5 | 7.5 | 10405 | 29125 | FCDP 120174540 | 1150 |
600 | 870 | 640 | 672 | 7.5 | 7.5 | 11875 | 34515 | FCDP 120174640 | 1330 |
610 | 870 | 660 | 680 | 9.5 | 7.5 | 11985 | 35990 | FCDP 122174660 | 1400 |
640 | 880 | 600 | 700 | 6 | 6 | 10860 | 33925 | FCDP 128176600 | 1150 |
650 | 920 | 670 | 723 | 7.5 | 4 | 12785 | 38835 | FCDP 130184670 | 1500 |
650 | 920 | 680 | 723 | 7.5 | 7.5 | 12935 | 39415 | FCDP 130184680 | 1510 |
650 | 920 | 690 | 723 | 7.5 | 7.5 | 13085 | 39995 | FCDP 130184690 | 1550 |
660 | 820 | 440 | 702 | 5 | 4 | 6815 | 24865 | FCDP 132164440 | 580 |
680 | 1020 | 650 | 803 | 6 | 6 | 14640 | 40185 | FCDP 136204650 | 1970 |
680 | 1020 | 680 | 775 | 3 | 5 | 15165 | 42040 | FCDP 136204680 | 2060 |
690 | 980 | 715 | 767.5 | 7.5 | 7.5 | 14440 | 44045 | FCDP 138196715 | 1850 |
690 | 980 | 750 | 766 | 7.5 | 7.5 | 14990 | 46200 | FCDP 138196750 | 1900 |
710 | 1000 | 715 | 787.5 | 9.5 | 6 | 14645 | 45195 | FCDP 142200715 | 1900 |
725 | 1000 | 700 | 796 | 6 | 6 | 14100 | 44880 | FCDP 145200700 | 1730 |
750 | 1000 | 670 | 813 | 6 | 6 | 13085 | 43965 | FCDP 150200670 | 1520 |
760 | 1030 | 750 | 828 | 7.5 | 7.5 | 15045 | 50125 | FCDP 152206750 | 2000 |
800 | 1080 | 700 | 878 | 7.5 | 7.5 | 14935 | 49185 | FCDP 160216700 | 1950 |
800 | 1080 | 750 | 880 | 6 | 6 | 15755 | 52700 | FCDP 160216750 | 2090 |
820 | 1130 | 800 | 903 | 7.5 | 7.5 | 17815 | 57995 | FCDP 164226800 | 2450 |
820 | 1160 | 840 | 910 | 7.5 | 7.5 | 19545 | 61415 | FCDP 164232840 | 2930 |
830 | 1080 | 710 | 896 | 6 | 6 | 14370 | 51165 | FCDP 166216710 | 1780 |
840 | 1160 | 840 | 920 | 5 | 7.5 | 19080 | 62420 | FCDP 168232840 | 2840 |
850 | 1150 | 650 | 941 | 9.5 | 9.5 | 15120 | 48560 | FCDP 170230650 | 1980 |
850 | 1150 | 800 | 930 | 6 | 6 | 17770 | 59765 | FCDP 170230800 | 2430 |
850 | 1150 | 840 | 928 | 6 | 6 | 18460 | 62755 | FCDP 170230840 | 2640 |
850 | 1180 | 650 | 945 | 7.5 | 7.5 | 16015 | 48960 | FCDP 170236650 | 2270 |
850 | 1180 | 850 | 940 | 7.5 | 7.5 | 19730 | 64025 | FCDP 170236850 | 2980 |
Features of four-row cylindrical roller bearings
- Higher radial load capacity
- Lower friction
- Compact internal structure
- Higher stiffness
- Higher precision
- High rotating speed
- Interchangeable
Advantages of our bearings
1. Improved practical life:
The machined steel cage can reduce wear, and the surface carburized raceways and rollers can effectively resist the impact load and fatigue cracking.
We optimized the roller profile – with the logarithmic crown profile, which effectively improves the fatigue wear between the rollers and the raceway and increases the service life.
2. High precision grade:
Grade P5, P4. High dimensional accuracy, rotation accuracy, and better roughness of rollers and raceways.
3. Improved installation:
To reduce roller sinking and larger inner ring chamfers make installation easier and reduce the risk of bearing damage during roll changing operations.
Applications of four-row tapered roller bearings
Four-row cylindrical roller bearings are used almost exclusively for the roll necks of rolling mill stands, calenders, and roller presses.