Patent ID: 8528727

Claim:
A conveyor roller ( 2 ) for a conveying system ( 1 ), which includes a shaft-hub assembly ( 8 ) comprising an axle pin ( 81 ), an elastically deformable expansion element ( 83 ) and a hub ( 82 ), wherein the axle pin ( 81 ) has an axle region ( 815 ) with an axle cross-section essentially corresponding to a hub cross-section of a corresponding hub region of the hub ( 82 ) in such a manner that the axle pin ( 81 ) disposed in the hub ( 82 ) is fixed in the radial direction relative to the hub ( 82 ), wherein the axle pin ( 81 ) has an axle rotation locking region ( 814 ) and the hub ( 82 ) has a hub rotation locking region, wherein the axle rotation locking region ( 814 ) and the hub rotation locking region are configured in such a manner that the axle pin ( 81 ) disposed within the hub ( 82 ) is fixed against rotation in a circumferential direction relative to the hub ( 82 ), and wherein the expansion element ( 83 ) is arranged on an axial end of the axle pin ( 81 ) in such a manner that the expansion element has a radial play, wherein the expansion element ( 83 ) has a disk with a center hole so that a continuous ring is defined around the center hole, circumferentially spaced extensions ( 833 ) extending out from the continuous ring to an outer peripheral region ( 831 ) and the expansion element ( 83 ) being configured in such a manner that the outer peripheral region ( 831 ), in the relaxed state of the expansion element ( 83 ), has an outer diameter, which is larger than an inner diameter of a corresponding inner peripheral region of the hub ( 82 ), wherein the expansion element ( 83 ), when the axle pin ( 81 ) is arranged within the hub ( 82 ), is elastically deformed in such a manner that the outer peripheral region ( 831 ) of the expansion element ( 83 ) is displaced from the relaxed position of the expansion element ( 83 ) in the axial direction of the axle pin ( 81 ) and wherein a reduction of the outer diameter of the outer peripheral region ( 831 ) of the expansion element ( 83 ) is coupled with the axial displacement of the outer peripheral region ( 831 ) of the expansion element ( 83 ) in such a manner that the reduced outer diameter of the expansion element ( 83 ) corresponds to the inner diameter of the corresponding inner peripheral region of the hub ( 82 ) against which the outer peripheral region ( 831 ) of the expansion element ( 83 ) is in pre-stressed contact.