Backside has a face 1.875 wide then it drops 1 to a 14.125 wide surface
There is a i OD. tube welded in the center sticking out 2 on the outside face.
There12 1/4 bolt holes in a 17 circle The bolt on Ring is 18 OD x 13.75 ID has matching bolt holes the back side has an 1.5 face with a 0.180 o ring cut in it .it drops .250 for a 0.625 wide surface with another 0.180 O ring cut.
Aluminum 72852702AR RM1189 Spindle w/ Pressed Bearing - 4" Body 6" OD 1/5" Shaft 4" OD aluminum body / 6" OD outer lip 5" from bolt hole center to center. On 1/2" SS shaft Condition: Used
