Circlips

Circlips, also known as retaining rings or snap rings, are a type of fastener used to securely position components on a shaft or inside a housing, preventing lateral movement while allowing rotation. They are commonly used in machinery, automotive applications, and various types of equipment where components must be held in place securely.

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What are circlips, and what are they used for?

Circlips, also known as retaining rings, are circular metal rings used to secure components on shafts or in housings, preventing axial movement. They are commonly used in mechanical assemblies to hold bearings, gears, and pulleys in place.

Circlips FAQs

What types of circlips are available?

There are two main types:

  • Internal Circlips: Fit inside a bore or housing to retain parts.
  • External Circlips: Fit around a shaft to prevent movement of components on the shaft.

Other variations include E-clips, snap rings, and wave washers, each designed for specific applications.

How are circlips installed?

Circlips are typically installed using circlip pliers with specially designed tips to fit the holes in the circlip ends. The pliers expand (for internal circlips) or compress (for external circlips) the ring, allowing it to fit into its groove on the shaft or bore.

How do I choose the right circlip size?

To select the correct circlip, measure the shaft or bore diameter where the circlip will sit. Each circlip has a specific nominal size, which corresponds to the shaft or bore diameter. Also, ensure the groove dimensions match the circlip thickness and diameter to ensure secure placement.

Can circlips be reused?

Circlips can sometimes be reused if they remain in good condition and retain their shape and spring tension. However, for critical applications, it is generally recommended to replace them with new ones to ensure secure retention.

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