Industrial automation is the trend towards the widespread use of automatic control and adjustment devices in industrial production to replace manual manipulation of machines and machine systems for processing and production. In industrial production automation, people only indirectly look after and supervise the production of machines.

Industrial automation, according to its stage of development, can be divided into: semi-automation. That is, part of the use of automatic control and automatic devices, while the other part of the machine by the manual operation of production, full automation refers to the production process of all processes, including loading, unloading, loading and unloading, etc., do not require direct human production operations (people only indirectly to watch and supervise the operation of the machine), but by the machine continuously, repeatedly and automatically produce a product or a batch of products.

Precision crossed roller bearings are 3-4 times more rigid than ordinary angular contact ball bearings. Automation equipment bearings do not need to be matched with thin-walled angular contact ball bearings as well. A set of crossed roller bearings can withstand forces in all directions, so precision instrument rotating parts are usually used for automation equipment bearings.