1.The main part is made of 45# steel and connected by expansion sleeve.

 2.The main body adopts blackening treatment ,which has simple structure and is convenient for inspection and maintanence.

 3.It is commonly used for high spped connection of servo motor,stepping motor and screw rod.

 4.Convenient installation compact strtucture ,suitable for high speed operation.

 5.Adopt 8 screw diaphragms with multilaterial acrr,with hig precision and large torque.