Four-Row Tapered Roller Bearings

Basically, the four-row tapered roller bearing has similar performance with two-row series. The only difference is that the four-row series can sustain heavier radial loads but have a little lower limit speed. By using four rows of rollers, this kind of bearings relieves the loads pressed on each roller and thus reduces wears and extended the service life of the rollers. Due to this, they are mainly used in heavy machines like the rolling mills.

Our four-row tapered roller bearing 38000 incorporates two inner double-race rings, one outer double-race ring, two outer single-race rings, and several intermediate rings. The intermediate rings are used to adjust the clearances, the size of which has a significant influence on whether the bearings can work well. If the clearances are two small, the bearings would be easily to be warmed up. However, if the clearances are too big, the bearings would be easily to be damaged. Therefore, it is extremely important to adjust the axial clearances to a reasonable size when the bearings are installed or operated.