Coupling

Common coupling positioned fixing screws : two screws spaced *0 °, the locking of the connecting shaft is fixed to a traditional way , since the front end in direct contact with the screw shaft , the shaft may be caused by injury, and difficult to remove ;
clamping screws : tighten the screws using the power of the slit to tighten the axis tightly clamped.
Keyway type : This is a traditional common way for high torque transmission, to prevent axial sliding , usually with screws and use .
Composite fixed way , to increase the reliability of the connection , the use of two fixed is called composite fixation .