Lockwashers are types of washers used in fastening applications to prevent nuts and bolts from loosening due to vibrations or other forces. Internal and external tooth lockwashers refer to specific variations of lockwashers with teeth designed to bite into the mating surfaces.
- Internal Tooth Lockwasher:
- An internal tooth lockwasher has teeth on the inner circumference (inside diameter) of the washer.
- When the nut is tightened against the washer, the teeth dig into the mating surface of the bolt or shaft, creating resistance against rotation.
- This helps prevent the nut from loosening due to vibrations or other external forces.
- External Tooth Lockwasher:
- An external tooth lockwasher, on the other hand, has teeth on the outer circumference (outside diameter) of the washer.
- When the nut is tightened against the washer, the teeth bite into the receiving surface, such as a workpiece or assembly.
- Like the internal tooth lockwasher, the external tooth lockwasher provides resistance to rotation and helps prevent the nut from loosening.
The choice between internal and external tooth lockwashers depends on the specific requirements of the application and the preferences of the user. Both types are designed to enhance the locking effect in fastening applications and improve the overall stability and security of the connection. It’s important to follow the manufacturer’s recommendations and guidelines when selecting and using lockwashers to ensure proper functionality.
