Traditional methods of shaft-to-hub connection are not satisfactory in many applications, mostly when frequent start-stopping-reversing are involved. Over the time the keyway engagement became less accurate due to mechanical wear. KEYLESS SHAFT-TO-HUB LOCKING DEVICES A keyless shaft-to-hub locking device allows a component to be easily removed from a shaft, repositioned on a shaft, or mounted more securely and conveniently on a shaft than other methods.