Industrial locknuts with lock washers are considered unsuitable for high-precision bearing applications due to the relatively wide manufacturing tolerances on the threads and support surfaces. Therefore, JOJI has developed a full line of precision locknuts manufactured to very close tolerances. These easy-to-install devices accurately and effectively lock bearings and other components to shafts, meeting the technical and economic requirements of machine tool applications.

All JOJI precision lock nuts are locked in place by friction between the mating threaded surfaces of the spindle and the lock nut. To utilize this friction, JOJI manufactures precision lock nuts in the following designs:

• Precision lock nut with locking pin