The design of four-row tapered roller bearings is particularly suited for taking extreme combined (radial and axial) loads at low to medium speeds. The axial load capacity depends primarily on the contact angle. The greater the angle, the greater axial load capacity. The four-row design ensures optimal load distribution between all four rows of rolling elements.
For highly contaminated operations with insufficient lubrication, sealed four-row tapered roller bearings are recommended. They have a very long service life even with an extremely high load capacity.
Bearing series: KBE (TDO), KF (TNA), KH / KDH (TDI), AR (těsněná)
Additional – ZYS
Four-row taper roller bearings is fitted on the roll neck loosely for easy mounting and removal. Meanwhile, the roll neck must be lubricated to prevent scoring between the roll neck and bore surface caused by creep. Oil slots on one side of each cone and both sides of the cone spacer are designed to prevent wear and seizure of the side surfaces of the cone and cone spacer. An oil groove and some holes are provided on the double cup and cup spacers.