With the development of modern manufacturing industry, the design requirements for mechanical manufacturing products are getting higher and higher, and the three-coordinate measuring instrument has been widely used in many industries. Improve the efficiency of the three-coordinate measuring instrument, which can make the detection results more effective.

A three-coordinate measuring instrument refers to an instrument that can express measurement capabilities such as geometric shape, length and circumference indexing within the space range of a hexahedron.

The CMM is guided by air bearings, so that there is no friction and wear between the guide rails, and long-term performance uniformity can be maintained. The high-pressure gas enters between the working surface and the guide surface through the small air holes in the air bearing, forming a uniform air gap. The normal working air gap of the air bearing is between 3 and 10 μm.