Crossed Roller Bearing

1. Description
The XR series crossed roller bearing ischaracterized by high stiffness, low friction torque, and compact structure.When the four-point contact ball bearingfails to meet customer's requirement on torque and stiffness, the XR series slewing bearingring is a good choice.

2. Features
There is a V-shaped raceway in the ring and cylinder rollersare used. The rollers are arranged in cross, which enables the crossed roller bearing to bear radial force, axialforce, and torque load or mixed load. Compared with the four-pointcontact ball bearing, our crossed rollerbearing has lower rotation resistance moment since each roller only bears theload in one direction and the roller is able to provide higher rigidity thanthe ball due to its contact area and geometric shape.

In case of the same size, roller has higher bearing capacity than ball.However, since not all rollers point to the same direction, the crossed rollerbearing is inferior to the four-point contact ball bearing in resisting thrustand torque load.

Gear or other driving mechanism can be designed on the inner or outer ring. Inaddition, the hole form for the slewing bearing can be specified by the customers.

3. Supply Capacity
This series of slew ring bearing is customized, so customer's requirements canbe well satisfied.

4. Application

The crossed rollerbearing is widely used in occasions requiring high stiffness and low torque,such as radar, excavator, machine tool, military turret, etc.

XR External Gear 

XR Internal Gear

XR No Gear

5.Technical Parameters of the Cylindrical RollerBearing