Taper Lock Keyless Timing Pulley
Timing pulley 3mm or 5mm pitch
Tooth number 3M 30 or 60 tooth, 5M 30 tooth
3M pulley is suitable for 9mm wide 3M belt and 5M pulley for 15mm 5M belt
Taper-lock compared with set screw the holding force is axial and even, but set screw is radial and setting force is on just the point of a m3 or m4 screw diameter.