Patent attributes
The invention provides a lock nut with a nut body which has a threaded section with an internal thread and an adjoining inner annular groove. An annular lock washer made of metal is held in the annular groove. An internal thread corresponding to the nut thread is cut into the inner circumference of the annular washer, and the internal thread of the annular washer is offset axially in relation to the nut thread by a distance which is smaller than a thread pitch of the nut thread. According to the invention, the thickness of the annular washer at the inside diameter thereof is greater than the thickness of the annular washer at the outside diameter to thereof. As a result, the elasticity of the annular lock washer and the holding force of the lock nut can be adjusted.
