Four-row Tapered Roller Bearing
Four row tapered roller bearings mainly used in steel rolling mill machines such as cold/hot rolling mills and bloomers. The feature of this kind of bearings are similar as double row tapered roller bearings. But they can endure stronger radial load than double row tapered roller bearings with lower limit rotation speed that mainly used for heavy-duty machinery.
Boundary dimensions(mm) Designations Equivalent to foreign designations(For your information)
d D B Fw   SKF FAG NSK NTN KOYO TIMKEN URB
600 870 480 480 (T) 3810/600
600 980 650 650 (T) 3811/600
620 800 363.5 363.5 (T) 3806/620
630 850 418 418 (T) 3819/630
630 920 515 515 (T) 3810/630
630 1030 670 670 (T) 3811/630
650 915 674 674 (T) 3806/650-1
650 1030 560 560 (T) 3806/650
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