Universal Concentricity Gage Main Rollers are heat treated, thermally stabilized and precision CNC ground to assure precise
run out accuracy before gage assembly. The rollers are ground as a set and
individually inspected for straightness, run out, roundness and finishes then sorted by size to fit the main bearings.
Concentricity Gage Main Rollers Selection
Main Rollers -10 / -20 / -40 series
Click on the Adobe logo to view the Main Roller dimensions