Value Collection 38-3M09-6FA-1/4 Timing Belt Pulleys; Pulley Type: Hub & Flanges; Number of Teeth: 38; Outside Diameter (Decimal Inch): 1.3990; Belt Width: 9.0 mm; 9.0 in; 9.0 cm; Material: Aluminum; Pitch Diameter: 1.429 in; 1.429 mm; Face Width: 0.