What are the differences between precision crossed roller bearings and ordinary bearings?
The rollers of the precision crossed roller bearings are arranged in a cross shape, so only one set of crossed roller ring can bear various directional loads. Compared with traditional models, the rigidity is increased by 3 to 4 times.
Because the inner or outer ring of the precision cross roller bearing is a two-part structure, the bearing clearence can be adjusted, and even if preload is applied, it can also obtain high-precision rotation activities.
Precision Crossed Roller Bearings can simultaneously bear various direction loads (such as axial, thrust or momentum loads). Because the roller is in contact with the surface of the track, the bearing is likely to be deformed elastically under load.
In the precision crossed roller bearing, the cylindrical rollers are arranged perpendicular to each other by the cage on the rolling surface of the V-shaped groove which is 90, so the set of precision cross roller bearings can bear the radial load and axial load. And moment loads.
The size of the inner and outer rings is miniaturized to a small extent, and the thin type is a small size close to the limit, and has high rigidity.
Precision crossed roller bearings are widely used in, for example, industrial robots, rotary tables of machining centers, rotating parts of robots, ultra-precision rotary tables, working machines and medical equipment.