The gear coupling is composed of two halves, which are respectively connected with the driving shaft and the driven shaft.The general power machine is mostly connected with the working machine by means of a gear coupling.As long as the shaft is connected to the shaft, gear couplings are almost always used.For the application of gear couplings, generally, as long as there is a motor or reducer, a gear coupling is used. Large-scale fans and motors are connected. Large-scale gear couplings are more commonly used in metallurgical machinery.Different gear couplings have different functions. The function of the comprehensive gear coupling is to connect the prime mover and the shaft of the working machine and transmit torque.

　　The other forms are all deformations on these two foundations.The gear clutch with internal and external gears transmits a relatively large torque. The design takes into account the different needs of users and is deliberately designed so that the lengths of the shaft ends on both sides of the teeth are not consistent, so that users can choose the installation direction according to their needs.

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