Rotary cables have a revolving inner cable which transmits a turning force. Mechanical speedometer cables are typical examples of rotary cables.  The ends of rotary cables are usually keyed or flanged and are usually a push fit into the housings to which they connect. A screw collar or a clamp then usually fits over the junction of the cable and housing to prevent the outer sheath of the cable from turning and to secure the cable in place.

It is particularly important to avoid sharp bends and compression of the outer sheath with rotary cables, as this can result in the rotating inner cable binding against the inner wall of the sheath and causing premature wear or breakage of the cable.

Where routing of the cable requires a tight bend at one, or both ends then an angle drive should be used. This will greatly extend cable life and ensure a  smoother action.  Two examples of angle drives are shown below, but there are many different fittings and we can advise you as to which type will best suite your needs.