Structure and classification of thrust

Structure and classification of thrust bearings

Aug 02, 2021


Thrust bearing is used to specially bear the axial force of the special bearing, which is, the axis parallel direction of the force of the bearing. It is also one the advantage products of FV bearing. Similar to the radial bearings, the thrust bearings contain two reels, a set of rolling elements, and a cage used for holding the rolling elements. The most common type of rolling body is composed by an iron or copper cage.They are widely be used in metallurgy industry.

Main difference between axial thrust bearings and radial bearings is the arrangement of the bearing ring. For the axial bearing, two seat rings are arranged in parallel and side by side along the axial direction.

According to the geometry of the rolling body, the thrust bearings are mainly classified to ball bearings, roller bearings and needle roller bearings etc.



Thrust ball bearing is a kind of separation type bearing. FV exported many of this rolling mill bearing to the steel plant all over the world. The shaft ring and seat ring can be separated from the components of cage and steel ball. The shaft ring is matched with the shaft, the seat ring is matched with the bearing seat hole, also there is a gap between the shaft; Thrust ball bearings can only bear the axial load, unidirectional thrust ball bearings can only bear the axial load in one direction, and bidirectional thrust ball bearings can bear the axial load in two directions.


Thrust roller bearing is used to bear the combined axial and radial load which is mainly axial load, but the radial load shall not exceed 55% of the axial load. Compared with other thrust roller bearings, this kind of bearing has lower friction coefficient, self-aligning performance and higher speed. 


Thrust needle roller bearing can be considered as a special thrust cylindrical roller bearing.  The load capacity of thrust needle roller bearings is significantly less than that of cylindrical roller bearings with the same thrust diameter. Thrust needle roller bearings are used in the medium and low speed range to prevent the adverse effects of sliding between roller and raceway.

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