Hand knobs GN 534.9 have been designed for use together with position indicators GN 000.9 / GN 000.13 which are installed in the centre of the hub.

The pallet pin is screwed in position and secured with a hexagon lock nut. The anchoring depth can still be adjusted to a certain degree.

Worth mentioning in particular is the profile of the rim which is unique for its form and function of these hand knobs.

On certain applications where these hand knobs are used with or without a position indicator, a cover cap is available to shroud the empty recess in the knob if required.