NSK Four-Row Cylindrical Roller Bearings: High Capacity & Long Life

NSK four-row cylindrical bearings are engineered specifically to accommodate the extremely heavy and impact loads – while running smoothly and accurately – in the back-up rolls of rolling mill stands. Amid particularly harsh operating conditions, NSK’s long-life Super-TF steel provides significantly higher durability to counteract the heavy rolling load and the high probability of compromised bearing lubrication due to contamination.

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Available in a large range of design types with high-performance cage options, and manufactured to precision tolerances, NSK four-row cylindrical bearings are optimized to deliver high capacity and high accuracy for uninterrupted and precise plate making.

STF127RVg 127 174.625 150.812 150.812 139.5  735 1 580 STF145RVg 145 210 155 155 165.93  770 1 850 STF145RVg 225 156 156 169  975 1 820 STF160RVg 160 230 168 168 180  895 2 200 STF160RVg 230 130 130 180  785 1 460 STF160RVg 240 145 145 180.073  920 1 600 STF165RVg 165.1 225.45 168.3 168.3 180.975 1 010 2 220 STF170RVg 170 230 160 160 185.5 1 150 2 060 STF170RVg 240 130 130 190  895 1 760 STF180RVg 180 260 168 168 202 1 150 2 300 STF180RVg 280 180 180 205.085 1 410 2 490 STF190RVg 190 270 200 200 212 1 470 3 100 STF190RVg 280 200 200 214 1 480 2 920 STF200RVg 200 270 170 170 222 1 120 2 590 STF200RVg 280 170 170 222 1 370 2 960 STF200RVg 280 200 200 222 1 410 3 200 STF200RVg 290 192 192 226 1 420 3 000 STF210RVg 210 290 192 192 236 1 400 3 350 STF220RVg 220 310 192 192 247 1 540 3 450 STF230RVg 230 330 206 206 260 1 760 3 900 STF240RVg 240 360 218 218 270.085 2 110 4 000 STF260RVg 260 370 220 220 292 2 050 4 450 STF280RVg 280 390 220 220 312 2 120 4 800 STF280RVg 390 220 220 312 2 280 5 100 STF320RVg 320 460 240 240 364 2 820 6 100 STF400RVg 400 560 410 410 445 6 550 16 500 STF440RVg 440 620 450 450 487 8 100 19 700 STF460RVg 460 650 470 470 509 8 600 21 200 STF480RVg 480 680 500 500 532 9 400 23 500 STF500RVg 500 670 450 450 540 7 750 20 000 STF500RVg 700 500 500 554 9 650 24 600 STF530RVg 530 780 570 570 601 11 800 29 200 STF550RVg 550 740 510 510 600 10 100 27 600 STF560RVg 560 820 600 600 625 14 100 34 000 STF570RVg 570 815 594 594 628 13 200 32 000 STF600RVg 600 820 575 575 660 12 900 35 500 STF650RVg 650 920 670 670 723 16 200 44 000 STF660RVg 660 930 660 660 728 17 000 44 000 STF690RVg 690 980 750 750 766 19 200 53 000 STF730RVg 730 1 030  750 750 809 20 700 56 500 STF761RVg 761.425 1 079.6 787.4 787.4 846 23 900 65 500 STF770RVg 770 1 075 770 770 847 23 100 63 500 STF800RVg 800 1 080 700 700 878 19 100 56 000 STF800RVg 1 080 700 700 878 19 200 55 000 STF800RVg 1 080 750 750 880 19 300 57 000 STF820RVg 820 1 100 745 720 892 20 100 59 000 STF820RVg 1 130 650 650 891 20 300 53 000 STF820RVg 1 130 800 800 903 22 900 66 500 STF840RVg 840 1 160 840 840 920 24 900 71 500 STF850RVg 850 1 150 840 840 928 25 600 77 500 STF850RVg 1 180 850 850 940 24 700 72 500 STF900RVg 900 1 220 810 800 981 25 900 74 500 STF900RVg 1 220 840 840 989 26 800 80 000 STF950RVg 950 1 330 950  950 1 053 33 500 97 000

The specification of oil mist fitting and O-rings on outer rings are available when requested.

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Additional bearing sizes are available. Please contact NSK for additional information.

NSK’s Four Row Cylindrical Roller Bearings with a Stud-Type Cage are designed to prevent cracking of rollers generated by extremely heavy rolling loads.

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