Crossed Roller Bearing

Category Description

Crossed Roller Bearing

Crossed roller bearings are lightweight, compact bearings with thinnest possible inner and outer rings with high rigidity, because of its vertical arrangement of cylindrical rollers with a 90°V groove through the separate spacers in the deep groove rolling surface. This special design allows just one bearing to carry loads in all directions including radial, axial and moment loads.

Depending on the application, crossed roller bearings are divided into seven types:

1.CRA Thin Type
(separable Outer Ring for Inner Ring Rotation)
CRA thin type is a small and light weight bearing with a very thin wall thickness. It carries heavy loads. Therefore, the bearing housing and pressure flange can be light weight. It is being used in rotary locations such as in robot hands. The outer rings of the CRA thin type are separable and fixed by special rivets.

2.CRB Standard Type (separable Outer Ring for Inner Ring Rotation)
CRB standard type is a bearing with thinnest possible inner and outer rings because the outer ring is split while the inner ring is integrated into the main body. It is being used in cases where a high rotational accuracy of the inner ring is required.

3.CRE Standard Type (separable Inner Ring for Outer Ring Rotation)
CRE standard type is an innovative bearing based on the design of the CRB standard type bearing. The inner ring is separable while the outer ring is integrated into the main body. It is being used in cases where the high rotational accuracy of the outer ring is required.

4.CRU Special Type (non-separable Inner- or Outer Ring)
CRU special type is a bearing with integrated inner- and outer ring. It is being used in cases where high rotational accuracy of both the inner- and outer rings is required.

5.CRBH Special Type (non-separable Inner- or Outer Ring)
CRBH Series Cross Roller Bearings of inside and outside by the integral structure around it, rigid better, particularly suitable for installation size limited, high precision, and at the same time, high rigidity requirements of the occasion.

6.SX Standard Type (separable Outer Ring for Inner Ring Rotation)
SX standard type is a bearing similar to a RB standard type. The two separable outer rings are connected by circlips.

7.XR Standard Type (two separable outer rings or inner rings)
XR/JXR Series Cross Tapered Roller Bearings are similar to CRB and CRE series cylindrical cross roller bearing in structure.XR/JXR Series Cross Tapered Roller Bearings has two separable outer rings or inner rings.Taper rollers which are cross arrange in 90 degree V groove are separated by spacer retainers.Compared with cylindrical cross roller bearing,this design allows just one bearing to receive more loads.These features enable stable and high rotation speed and accuracy.

 

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