Value Collection 40-3M06-6FA-1/4 Timing Belt Pulleys; Pulley Type: Hub & Flanges; Number of Teeth: 40; Outside Diameter (Decimal Inch): 1.4740; Belt Width: 6.0 cm; 6.0 in; 6.0 mm; Material: Aluminum; Pitch Diameter: 1.504 mm; 1.504 in; Face Width: 0.