Product dimensional dataShaft-Size (d) 1.25Dimensions (mm) (in)Overall Diameter (a) 125.0 / 4.92Flange Thickness (b) 10.9 / 0.43Pilot Depth (c) 10.9 / 0.43Bolt Circle Diameter (e) 100.0 / 3.937Thickness Thru Bolt Hole (f) 0.8 / 0.03Bolt Hole Diameter (g) 11.4 / 0.45Length Thru Bore?? (l) 36.8 / 1.45