"4 x 2 V-groove wheel 3/4"" RB"
3 x 1-1/2 cast iron V-Groove wheel 3/4 RB
"3 x 1-1/4 phenolic wheel, 1/2 plain bore"
"pneumatic wheel, 4.80/400-8 (1 inch bearing)"
"2 x 7/8 ICE WHEEL 1/4"" precision bearing"