JS型蛇形弹簧联轴器，是一种结构先进的金属弹性联轴器。它靠蛇形弹簧片来传递扭矩。其传动特性与优点如下：

1、减振性好，使用寿命长，联轴器以蛇形弹簧片轴向嵌入两半36％以上。梯形截面的蛇形弹簧片采用优质弹簧钢，经严格的热处理，并特殊加工而成，具有良好的机械性能，从而使联轴器的使用寿命远比非金属弹性元件联轴器（如弹性套 柱销，尼龙棒销联轴器）大为增长。

2、承受变动载荷范围大，起动安全，两个半联轴器与簧片接触的齿面是弧形的，当传递扭矩增大时，弹簧片将沿齿弧面变形，使两个半联轴器作用在簧片上的力点靠近。簧片与齿面的接触点即力矩的变化，是随着传递扭矩的大小而变化的，它的传动特性是变刚度的。因而它具有比一般弹性联轴器能承受更大的载荷变动量。传动力使簧片沿齿弧变形时所产生的缓冲作用，尤其在机器起动时或强力冲击载荷时，于一定程度上有保护配套机件的安全性。

3、 传动效率高，运行可靠，联轴器的传动效率，经测定达99.47％，其短时超载能力为额定扭矩的两倍，运行安全可靠。

4、 噪声低，润滑好　铝合金罩壳以保护弹簧避免运转时向外甩出，且壳体内储满黄油，不仅使润滑良好，而且使簧片啮合时的噪声被黄油阻尼吸收而消除。

5、 结构简单，装拆方便　整机零件少，体积小，重量轻，被设计成梯形截面的弹簧片与梯形齿槽的吻合尤为方便，紧密，从而使装拆，维护比一般联轴器简便。

6、 允许有较大的安装偏差　由于弹簧片与齿弧面是点接触的，所以使联轴器能获得较大的挠性。它能被安装在同时有径向，角向，轴向的偏差情况下正常工作。

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.