GT3 Timing Pulley - 20 Tooth-6.35 bore

Description : This is a high quality aluminum timing pulley that is perfect for your automation projects! It has more aggressive teeth than it's little brother the GT2 so this can be used in higher torque applications. This pulley has a 6.35mm (1/4") bore size which fits the Nema 23 Stepper Motors. GT3 aka GT2 (3mm) or 3GT 20 Tooth Aluminum 6.35mm Bore belt 9mm 2 flanges with hub Set Screws included (M3 - 5mm - 1.5mm Hex) Pulley Diameter 18.3mm ID 6.35mm(bore) H 17.6mm Overall OD 26mm Use with GT3 Belt sold by the foot or by the spool.