We have added a setscrew lock to the inside nut of all CROSSLOC CXC units.
When the shaft rotates rapidly counterclockwise and reaches high speeds, heavy, large nuts increase the risk of the CROSSLOC CXC nuts coming loose and pulling the sleeve. To enhance safety, we have added a setscrew to secure the nut in place. The setscrew features a brass tip to prevent damage to the threads.
The sleeve of the CROSSLOC CX is designed to be pull-to-lock and does not require this additional locking mechanism.