Ametric 8M90QD30.SK Web Construction Cast Iron HTD Timing Pulley without flanges for QD Bush, For 8M Pitch X 30 mm Wide HTD Belt,Bored for SK QD Bush, 90 Teeth, 9.023 Inch Pitch Dia., 8.969 Inch Outside Dia.(OD), 1.5 Face Width(F), (1-009)