Amazon.com: ZHENGGUIFANG Professional Arc 14 T HTD 5M Timing Pulley, Bore 5/6/6.35/7/8/10mm for Width 15/20mm HTD5M Synchronous Belt Gear Pulley 14T BF/K Type (Bore Diameter : 8mm, Number of Pcs : 2pcs) :
Amazon.com: ZHENGGUIFANG Professional Timing Pulley 8M-44T/45T/46T/47T, Process Hole 12mm Aluminum Pulley Slot Width 27/32mm for 25/30 mm Timing Belt (Bore Diameter : 46T, Number of Pcs : 1pc) : Industrial & Scientific