Wheel flange has a 4 bolt pattern, 3-9/16″ or 90mm bolt circle.
Sprocket/drum flange has a 4 bolt 2-7/8″ bolt circle pattern.
Hub length is 3-1/2″.
Rim flange to drum/sprocket flange 2-3/4″.
Hub and bearing extends out past each flange by a 1/4″.
Used on ourAZ1039
