Should I use a collet knob, or push-on knob, in my application?

A. The type of shaft you are using and your application will determine which type of knob is best for you. Collet knobs are only recommended for a smooth, round shaft (no splines and no flat on the shaft).

Collets are a good choice when a secure fit is important. A tool must be used to install or remove collet knobs. A push-on knob can only be used on a splined shaft or a D shaft.

A push-on knob is a good choice when cost savings is an important factor. Push-on knobs are held on by an interference fit, which means that they can be installed and removed relatively easily. More.

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