Crossed cylindrical roller bearings

Ložiska se zkříženými válečky
Crossed roller bearings are compact bearings with their rollers alternately crossed at right angles to each other between inner and outer rings. 
 
They can take loads from any direction at the same time, such as radial, thrust and moment loads. The rollers make line-contact with raceway surfaces, and therefore, elastic deformation due to bearing loads is very small.

These bearings are widely used in the rotating parts of industrial robots, machine tools, medical equipment and more, which require compactness, high rigidity and high rotational accuracy.

Crossed roller bearings are offered in several series:

  • High rigidity type crossed roller bearings – Both inner and outer rings have a solid one-piece construction. Therefore, high accuracy and high rigidity are achieved, and mounting errors can be minimised. As separators are incorporated between the rollers for smooth rotation, these bearings are suitable for applications where rotational speed is comparatively high.
  • Standard type crossed roller bearings – The outer ring is made of two split pieces, which are bolted together to prevent separation during transportation or mounting. This means handling is easy.
  • Slim type crossed roller bearings – These bearings are very slim, with a small outside diameter in comparison with the bore diameter, and a narrow width. The type with a cage and the type with a separator, provide smooth rotation and are suitable for applications where rotational speed is comparatively high.
  • High rigidity type crossed roller bearings with mounting holes.
 
Bearing series:  CRBH, CRBC, CRBS, CRBT, CRBF .... (IKO)

More details in the catalogue:

Ložiska se zkříženými válečky / Válečková L se zkříženými válečky - Crossed CRB
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