Patent ID: 8414271

Claim:
An air-conditioning compressor comprising: a casing, a shaft configured to rotate about an axis, and a torque-transmitting device including: a pulley, a rolling bearing positioned inside the pulley and mounted to the casing having an inner ring with a bore and a transverse face, an outer ring and at least one row of rolling elements, and a torque-transmitting member including an outer part connected to the pulley, an inner part fixed to the shaft, and at least two arms connecting the outer part and the inner part, wherein an opening is formed between the at least two arms, the bore of the inner ring having a radius greater than a distance between the axis of rotation and an inner radial end of the opening sized for insertion of a crimping tool, and wherein a plurality of local plastic deformations of the casing interfere with the transverse face of the bearing inner ring, each of the plurality of local plastic deformations simultaneously being in axial alignment with the respective opening in at least one relative angular position between the torque-transmitting member and the bearing inner ring, wherein each of the plurality of local plastic deformations are deformed by the crimping tool to form bulges caused to the end of the casing.