The JS - type serpentine spring coupling is a kind of advanced metal elastic coupling. It delivers torque by a snake-shaped spring. Its transmission characteristics and advantages are as follows:

1. Good vibration resistance and long service life. The coupling is embedded more than two and a half 36 percent in the shaft of the snake-shaped spring. Trapezoidal cross-section of coil spring is made of high quality spring steel, the strict heat treatment, and special processing and become, has the good mechanical properties, which makes the service life of the coupling than non-metallic elastic element coupling (such as elastic dowel pin, nylon rods pin coupling) increase greatly.

2, large range of fluctuating load and under safe starting, two and a half coupling tooth surface is curved, in contact with the reed when the torque is increased, leaf spring deformation along the tooth surface, make two and a half point close to the coupling effect on the reed. The contact point of the reed and the tooth surface is the change of torque, which varies with the transmission torque, and its transmission property is variable stiffness. Therefore, it has more load variation than the general elastic coupling. The driving force makes the reeds have a cushioning effect during the deformation of the tooth arc, especially when the machine is starting or when the force impact load is strong, to some extent, the safety of the supporting equipment is protected.

3. High transmission efficiency and reliable operation, the transmission efficiency of the coupling is 99.47%, and its short-term overload capacity is twice as high as the rated torque, and the operation is safe and reliable.

4, low noise, good lubrication aluminum alloy cover to protect the spring to avoid running when thrown outwards, and casing filled with butter, not only make good lubrication, and make the reed meshing noise is butter damping absorption and elimination.

5, simple structure, convenient installation the machine parts, small volume, light weight, is designed to be trapezoidal section leaf spring with trapezoidal alveolar is particularly convenient, close together, so that the installation, maintenance easy coupling than normal.

6. It is permissible to have a larger installation bias because the spring and tooth arc are touched, so that the coupling can get a greater flexibility. It can be installed at the same time with radial, angular, axial deviation and normal work.