Gates P40-8MGT-20 Sprocket - Weight: 2.520000, Part Number: P40-8MGT-20, Profile: GT, Number of Grooves: 40, Pitch Diameter (inch): 4.01, Flange Outer Diameter (inch): 4.33, Bushing Style: Taper-Lock, Bushing Number: 1610, Min Bore Range (inch): 0.5, Max Bore Range (inch): 1.69, Core Material: Gray Iron