[20 teeth bore 6mm]
This is suitable for XL BELT.BELT width.6mm pitch:2mm
16teeth,Tooth OD: 6.69mm,Max OD: 12.5mm,Screw: 2m3,Height 14mm
20teeth,Tooth OD: 12.23mm,Max OD: 15.5mm,Screw: 2m4,Height:16mm
25teeth:outer diameter of tooth:15.42mm,max outer diameter:18mm,screw:2m4,height:16mm;(with inner hole)
30teeth,Tooth OD: 18.6mm,Max OD: 22mm,Screw: 2 M4,Heigth: 17mm;
40teeth,Tooth OD: 24.97mm,Max OD: 27mm,Thread: 2 M4,Heigth: 17mm;
60teeth; Tooth Outer Diameter: 37.7mm; Maximum Outside: 40mm; Screw: 2 m4
If you need a belt. Open belt options