There is no fundamental difference in their applications. The NF-type set screw is inclined, with the locking position nearly aligned with the end face. The NR-type set screw is radial, with the locking position located in the middle of the nut’s axial length. When the lock nut has a recessed structure for locking, the NF-type allows easier tightening of the set screw.
There is no fundamental difference in their applications. The NF-type set screw is inclined, with the locking position nearly aligned with the end face. The NR-type set screw is radial, with the locking position located in the middle of the nut’s axial length. When the lock nut has a recessed structure for locking, the NF-type allows easier tightening of the set screw.