Value Collection 36MP025-6FA-1/4 Timing Belt Pulleys; Pulley Type: Hub & Flanges; Number of Teeth: 36; Outside Diameter (Decimal Inch): 0.8970; Material: Aluminum; Pitch Diameter: 0.917 in; 0.917 mm; Face Width: 0.389 in; 0.389 mm; Flange Diameter: 1