Play-free shaft coupling KK14 consists of two identical halves with aluminium hubs (clamping rings) which can be supplied with different bores (fit size H7) for mounting the shafts. The coupling can be pulled apart and assembled axially without having to re-lease the two halves from their shafts. An involute ring gear manufactured from elastic polyurethane pre-tensions the two halves positively, separates them galvanically and joins them together without play. Thanks to adherence to gap dimension 's', model KK14S also attains electrical insulation in addition to achieving a long service life. The coupling is particularly suitable for use at high accelerations and for transmitting high torques.