Anordning för fastsättning av en axel

摘要

An apparatus for the attachment of an axle (10) to a hub (3) capable of rotating around a rotational axis (2) is provided with a first thread (5) and with a screw (7) with a second thread (8) and a third thread (9), so that the second thread (8) has half the pitch of the third thread (9) and is screwed into the first thread (5). A clamping device of the apparatus consists of a first part (11) and a second part (12) which is screwed via a fourth thread (13) into the third thread (9). By rotating the screw (7) the first part (11) with the screw (7) can be moved in a first direction, so that the second part (12) is at the same time moving at twice the speed in the opposite direction to the first direction. The axle (10) can be clampingly held between the first part (11) and the second part (12) in a wide diameter range so as to be centered relative to the rotational axis (2) by turning the screw (7).