Question
Download Solution PDFA tab washer is used for:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Washers are of two main types:
- Plain washers are inserted under screw heads or nuts to provide a suitable bearing area while tightening and to protect the component from damage.
- Lock washers are used to prevent loosening due to vibrations, movements, or temperature variations.
Common types of lock washers include:
- Spring washer
- Snake-proof washer
- Crinkle washer
- Tab washer
Tab washers:
- Tab washers can be used for locking the nuts which are located near an edge or corner.
- These are thin metal washers designed with two or more tabs that project from the external diameter.
- On assembly, a tab is bent against the component or sometimes into a hole in the component.
- Other tabs are then bent up against the correctly tightened nut.
- The deformation of the tab washer is such that it is intended to be used only once.
Spring washer:
- Spring washers are available with single or double coils.
- These are placed under a nut in the assembly as washers.
- The stiff resistance offered by the washer against the surface of the nuts serves to prevent loosening.
Last updated on Jun 11, 2025
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