3 x 1-1/4 v-groove wheel 1/2 plain bore
3 x 1-1/2 cast iron V-Groove wheel 3/4 RB
3 x 1-3/16 inch sintered iron (semi-steel) wheel
3 x 7/8 Urethane wheel 3/8 Id metal bushing
3 x 1-1/2 V-Groove wheel 1-3/16 plain bore