Part No.

"A" Diam

"B" Hgt

Hub

Mountings

2830

2"

1"

7/8"

 1/4-20, 5/16-18, 3/8-16, 1/2-13, 1/2-20 Thru & Closed F.I.; 1/4-20 x 1-1/2", 5/16-18 x 1/2", 7/8", 1-1/4", 3/8-16 x 7/8", 1", 1-1/2", 2", 2-1/2", 1/2-13 x 3/4 P.S.; 3/8-24 x 5/8" P.S.