Chinese manufacturer anti loosening nut self-locking nut

A Lock Nut is a component that is screwed together with a bolt or screw to provide a fastening effect. It is a necessary part for all production and manufacturing machinery. A lock nut is a component that tightly connects mechanical equipment. It can only be connected together through the inner thread, the same specification of lock nut and screw. Below are four ways to prevent the lock nut from slipping
Mechanical anti loosening
It is to use a locking nut stopper to directly limit the relative rotation of the locking nut pair. If using gear pins, connecting steel wires, and stop washers, etc. Due to the lack of pre tightening force on the locking nut stopper, the anti loosening stopper can only take effect when the locking nuT Nut is loosened to the stop position. Therefore, in practice, this method of locking the nut does not prevent loosening but avoids falling.
Rivet punching anti loosening
After tightening, methods such as punching, welding, and bonding are used to make the locking nut pair lose its motion characteristics and become non removable. The drawback of this method is that the bolt can only be used once and disassembly is very difficult, requiring the destruction of the bolt pair before disassembly.
Friction anti loosening
This is the most widely used anti loosening method, which generates a positive pressure between the locking nut pairs that does not change with external force, to produce a frictional force that can prevent the relative rotation of the locking nut pairs. This positive pressure can be achieved by tightening the locking nut pair axially or simultaneously in both directions. Such as using elastic washers, double nuts, self-locking nuts, and embedded locking nuts.
Construct anti loosening measures
It is constructed using the locking nut pair itself, that is, the Tang locking nut anti loosening method.
Edge flushing method to prevent loosening
After tightening the nut, punch a point at the end of the thread to break it; Adhesive anti loosening is usually achieved by applying anaerobic adhesive to the threaded mating surface. After tightening the anti loosening nut, the adhesive can cure on its own, and the anti loosening effect is good. The disadvantage of this method is that the bolt can only be used once and it is very difficult to disassemble. The bolt pair must be destroyed before it can be removed