Bandon Gaham Autogaphed Signed Philadelphia Eagles Jesey Beckett Authenticated. WIN Pnloog-Timing Pulley 30 Teeth HTD 5M Synchronous Pulley, Bore 6 ZHaonan-Timing pulley 30 Teeth HTD 5M Synchonous Pulley Fit for Belt Width :15mm/20mm Bore: 6/8/10/12/14/15/16/18/19/20mm Type: 30-5M-15 BF and 30-5M-20 BFPitch: 5mmTeeth Number: 30 TeethOutside Diameter (OD): 46.60mmBore: 6/8/10/12/14/15/16/18/19/20mmFlange:doubleMaterial:Aluminium AlloyFixed mode: M5*2Fit for Belt Width :15mm/20mm Teeth Number: 30 Teeth Widely used in 3D printer, milling machine, gear shaper, drilling machine, CNC engine lathe, hobbing machine or other machinery transmission occasions.