Ametric&reg; 5M24X25 Steel HTD Timing Pulley with Flange, 5 mm Pitch, 24 Teeth, for 25 mm wide belt, 6 mm +/-1mm Pilot Bore, 38.2 mm Pitch Dia., 37.06 mm OD, 27 mm Hub Dia., 30.5 mm Face Width, 38 mm Overall Width, 6F/S , (1-080) 1-080-5M24X25 Ametirc Part Number Steel HTD Timing Pulley with Flange 5 mm Pitch 24 Teeth for 25 mm wide belt 37.06 mm Outside Diameter(De) 38 mm Overall Width(L)