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The working principle of universal joint coupling is as follows:

1. Universal coupling makes use of the characteristics of its mechanism to make the two axes not in the same axis, under the condition that there is an Angle between axes, it can realize the continuous rotation of the two axes connected, and transfer the torque and motion reliably.

2. Universal coupling is the biggest characteristic, its structure has a larger angular compensation ability, compact structure, high transmission efficiency. The Angle between two axes of universal coupling is different in different structural types.

3. Mechanical parts used to connect two shafts in different mechanisms so that they can rotate together to transfer torque. In high-speed and heavy-duty power transmission, some couplings also have the functions of buffering, damping and improving the dynamic performance of shafting.

4. The coupling is composed of two halves, which are connected with the driving shaft and driven shaft respectively. Generally, the power machine is connected with the working machine by means of the coupling.

5, the cross shaft universal coupling is a large amount of universal coupling, bearing is the wear parts of the cross shaft universal coupling, the main difference between several large cross shaft universal coupling lies in the change of bearing housing and cross fork head, form different structural forms.