Description:XL Timing Pulley 10-40 Teeth Synchronous Wheel Inner Diameter 4-12mm For CNC PartsSpecifications:Product Name:XL Synchronous WheelMaterial:AluminumType of Tooth:XLTeeth Pitch:5.08mmAllowable Torque:30 (N.M)Tooth ShapeTrape:zoidSuitable For Timing Belt10mm WidthQuantity:1 Pc x XL Synchronous Wheel Number of Teeth Tooth Outer Diameter Inner Diameter Outside Diameter of Rib Top Wire Hole Total Height 10T 15.66mm 4mm 18.5mm 2xM4 20mm 20T 31.83mm 35.5mm 21mm 10T 15.66mm 5mm 18.5mm 20mm 20T 31.83mm 35.5mm 21mm 25T 39.92mm 44mm 2xM5 24mm 30T 48mm 52mm 10T 15.66mm 6mm 18.5mm 2xM4 20mm 20T 31.83mm 35.5mm 21mm 10T 15.66mm 8mm 18.5mm 20mm 20T 31.83mm 35.5mm 21mm 25T 39.92mm 44mm 2*M5 24mm 30T 48mm 52mm 40T 64.17mm 68mm 20T 31.83mm 10mm 35.5mm 2xM4 21mm 25T 39.92mm 44mm 2xM5 24mm 30T 48mm 52mm 40T 64.17mm 68mm 20T 31.83mm 12mm 35.5mm 2xM4 21mm 25T 39.92mm 44mm 2xM5 24mm 30T 48mm 52mm 40T 64.17mm 68mm Features:- Accurate transmission, no slippage during work, and constant transmission ratio.- Smooth transmission, with buffering and vibration reduction capabilities, and low noise.- High transmission efficiency and obvious energy saving effect.- Easy maintenance, no need for lubrication, low maintenance cost.- Large speed ratio range and large power transmission range.- The teeth are beautiful in shape, precisely mesh with the belt, and have high concentricity.Package Included:1 x XL Synchronous Wheel