Patent ID: 7416067

Claim:
A power transmission unit comprising: a multiple disk clutch or friction brake, including a disk carrier that has at least one disk, said at least one disk having external teeth and being fastened to the disk carrier in a non-rotating fashion, said disk carrier, including a cylinder section oriented toward said at least one disk; said cylinder section having axial grooves and axial ribs distributed over the circumference in alternating fashion and being connected to a hub on one side by a drive plate spaced axially apart from said at least one disk; a non-rotatable connection between the drive plate and the disk carrier being produced by plug-in teeth in order to transmit a torque; an axial fastening arrangement having an annular securing element axially fastened to the disk carrier, the axial fastening arrangement embodied so that axial forces that the drive plate exerts on the disk carrier exclusively engage the region of the disk carrier that extends axially from the drive plate in the direction of at least one disk; and one or more holding fingers distributed over a circumference of said annular securing element, said one or more holding fingers point axially toward the drive plate and are guided through axial openings in the drive plate.