Some items from this specific schematic: Wheel-assy,rr,m.f.p.s, Washer, Collar,rr Hub,l=151, Collar,20.2x28x89.
This Wheel-assy,rr,m.f.p.s is the most expensive of the items that make up this Rear Wheel/chain assembly.
With two applications this Bearing-ball,#6304uuc is the most specified part.