Power Lock (พาวเวอร์ล็อค) / Compomac/ Locking (ล็อคกิ้ง) / Locking Assembly /Conex

The advantage of these over the conventional technique of welding components together is that the shaft can be easily replaced and they don't require a keyway. They consist of two tapered rings with screws that tighten the assembly pulling one taper up on the other expanding and locking the surfaces against each other. Removable shafts on drum assemblies, pulleys and sprockets on line shafts