ARRANGEMENT AND CORRESPONDING ADAPTER FOR RECEIVING A ROTARY BODY IN A CENTERED AND AXIALLY FIXED MANNER

摘要

An arrangement is disclosed for receiving a rotary body (412) in a centered and axially fixed manner, in particular a grinding wheel, on a supporting part (410) with an axial centering spike (418) which projects into the central opening (416) of the rotary body (412) and a substantially radial collar (480) adjacent thereto, against which the rotary body (412) may be axially clamped. In order to allow extremely rapidly rotating bodies (412) to be clamped extremely accurately with simple hand grips, an elastically expandable, preferably thin-walled axial extension (440) is arranged between the centering spike (418) and the opening (416). The axial extension (440) is supported on the outer surface of the centering spike (418) and on the inner surface of the opening (416) and together with a clamping plate (436) forms a single adapter piece (439). Preferably captive clamping means received in the adapter piece (434) and on the supporting piece (410) allow the clamping plate with its radial collar to be pressed against the rotary body (412) while the axial extension (440) is elastically expanded.