AN IDLER GEAR ASSEMBLY, AS WELL AS AN INTERNAL COMBUSTION ENGINE COMPRISING THE IDLER GEAR ASSEMBLY, AND A METHOD FOR FIXING A BUSHING IN A THROUGH BORE OF A GEAR OF THE IDLER GEAR ASSEMBLY.

摘要

An idler gear assembly 13 has a compound gear 15 consisting of two gear wheels 17 and 19. The gear wheels are provided with a through bore 25 in which a thin walled bushing 27 is press-fitted. Additional axial fixation means are provided to fixate the bushing 27 into the bore 25 in axial direction. These additional axial fixation means are constituted by a circular radial outward deformation 29 of the wall 31 of the bushing 27 and a circular groove 33 provided in the internal surface 35 of the bore 25 in which the radial outward deformation 29 is located. This outer radial deformation 29 is made by pressing the internal surface 35 of the bushing 27 radial outward by means of a circular rolling operation after the bushing is press-fitted into the bore 25 of the gear.