Four- row tapered roller bearings

Tapered roller bearing



Tapered roller bearings are rolling element bearings that can support axial forces as well as radial forces.



The inner and outer ring raceways are segments of cones and the rollers are tapered so that the conical surfaces of the raceways, and the roller axes, if projected, would all meet at a common point on the main axis of the bearing. This geometry makes the motion of the cones remain coaxial, with no sliding motion between the raceways and the OD of the rollers.



In many applications tapered roller bearings are used in back-to-back pairs so that axial forces can be supported equally in either direction.



Pairs of tapered roller bearings are used in car and vehicle wheel bearings where they must cope simultaneously with large vertical (radial) and horizontal (axial) forces. Tapered roller bearings are commonly used for moderate speed, heavy duty applications where durability is required. Common real world applications are in agriculture, construction and mining equipment, sports robot combat, axle systems, gear box, engine motors and reducers, propeller shaft, railroad axle-box, differential, wind turbines, etc.

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WUXI LOTTON -- Four- row tapered roller bearings


Four row tapered roller bearings is composed of two double row inner rings and one double row outer ring consisting two single outer rings. Between the two inner rings, there is one inner spacer. Among those three outer rings, two central spaces are furnished, which can be use to adjust the clearance. When borne by heavy radial load, it can bear simultaneously axial load in two different directions. But its allowed speed is not much, which is mainly used for rolling mills. 

In recently years, four row tapered roller bearings with double face seal is popular, especially in rolling mills. LOTTON is able to cater the customers with those sealed four row tapered roller bearings. 


Features of four-row tapered roller bearings 

Well-allocated loads on the four-row rollers

High radial and axial load capacity in two directions

Separable, faster and convenient for mounting, dismounting, inspection, and maintenance 


Application of four-row tapered roller bearings 

They are mainly applied in rolling mills, including hot and cold strip rolling mills. 


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