LENGTH-VARIABLE JOINT SHAFT

摘要

An adjustable length propeller shaft (1) has a visual torsional load indicating device including a marker (7) on a sealing collar (6) of one shaft part (9) and a calibrated scale (8) on the sleeve (5) of the other shaft part (10); an end journal (4) of the shaft part (9) being in telescopic torque transmitting relation with the sleeve (5) and surrounded by the sealing collar (6). Any permanent torsional deformation between the journal (4) and sleeve (5) results in a permanent relative rotational movement therebetween observable as a movement of the marker relative to the scale.