Clearance tester to check and control the clearance of the bearing.
Hardness tester to check product hardness before and after heat treatment.
Roundness tester to check roundness and R of the rings during process
Metroscope identify and measure master piece(part)
Metalloscope to check metallurgical structure of the rings after heat treatment
ltrasonic flaw detector to check crack of raw material and finished products
Surface Roughness Tester to control the surface precision accuracy of rings