Features & Specifications:

Outside diameter : 4-1/4 in
Bore diameter : 1.5000 in
Bolt circle diameter : 4 in
Length through bore : 2 in
Maximum hub outside diameter : 5-5/8 (Steel) in, 6-1/4 (Class 30 Gray Iron) in, 7 (Class 20 Gray Iron) in 5-5/8 (Steel) in 6-1/4 (Class 30 Gray Iron) in 7 (Class 20 Gray Iron) in
Number of bolt holes : 2
Bushing size : 3020
Screw thread size : 5/8-11 in
Screw length : 1-1/4 in
Keyway size : 3/8 x 3/16 in
Bore type : Finished w/ Keyway
Screw torque : 800 in-lbs