Laminated wheel assembly

A wheel assembly, comprising:

• a rotatable shaft;
• a pair of wheels fixedly secured to said shaft and disposed in axially spaced relation to one another, each of said wheels including a laminated stack of flat plates disposed in abutting relation to one antoehr, each of said plates having an opening formed therethrough disposed in axial registry for frictionally receiving said shaft, one of said wheels includes intergral teeth formed in its periphery to provide a laminated gear and the other wheel includes an integral cam surface formed in its periphery to provide a laminated cam, and each of the individual plates of said cam is stamped from the individual plates of said gear;
• and
• means for mounting said wheels on said shaft, said mounting means includes a serrated outer surface on said shaft having a plurality of axially extending, radially projecting teeth disposed circumferentially about substantially the entire outer surface of said shaft, said teeth being tapered along their axial length so that their radially outer diameter at one end of said shaft is less than their radially outer diameter at the other end of said shaft to secure said wheels aginst both axial and circumferential movement relative to said shaft by virtue of the interference of said teeth with said wheels.