Gear arrangement

A shaft-and-gear arrangement comprising:

• a shaft having a longitudinal axis of rotation, a first portion having an outer diameter, a second portion, and a third portion axially between the first portion and the second portion,
• a first gear formed integrally with the second portion of the shaft or having a circumferential inner surface secured to an outer surface of the second portion of the shaft, the first gear having a first subportion having a maximum outer diameter of the first gear and a second subportion having a radially outer surface having a maximum outer diameter less than the maximum outer diameter of the first gear, the second subportion including a first axially facing abutment surface, and
• a second gear having a circumferential inner surface mounted on the third portion of the shaft coaxial with the first gear, the second gear having a first subportion having a maximum outer diameter of the second gear and a second subportion having a radially outer surface having a maximum outer diameter less than the maximum outer diameter of the second gear, the second subportion having a second axially facing abutment surface in contact with the first axially facing abutment surface of the first gear.