The length of a single convolution of a bellows, measured either from root to root or crest to crest.

This length can be calculated by,

Pitch = Bellows convoluted length / Number of convolutions

Pitch = Bellows convoluted length / Number of convolutions

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The length of a single convolution of a bellows, measured either from root to root or crest to crest.

This length can be calculated by,

Pitch = Bellows convoluted length / Number of convolutions

The ROOT of a convolution is the curved profile located at the inner diameter of the bellows.

The CREST of a convolution is the curved profile located at the outer diameter of the bellows.

Tangents are straight un-convoluted portions at the end of the bellows.