与平键联接比较，花键联接在强度、工艺和使用方面有下列特点：在轴上与毂孔上直接而均匀地制出较多的齿与槽，故联接受力较为均匀；因槽较浅，齿根处应力集中较小，轴与毂的强度削弱较少。
Compared with the flat bond connection， the spline connection has the following characteristics in strength，联接机型号， process and use.More teeth and grooves are made directly and evenly on the shaft and hub hole， so the joint force is more uniform.
Because of the shallow groove， the stress at the root of the tooth is ***all，联接机生产厂家， and the strength of the shaft and hub is weakened less.
一个切向键只能传递一个方向的转矩，传递双向转矩时，须用互成120°～130°角的两个键。用于载荷很大，对中要求不严的场合。由于键槽对轴削弱较大 ，常用于直径大于100mm的轴上。
A tangent key can only transfer the torque of one direction. When the two-way torque is passed， the two keys of 120 to 130 degrees are required. An occasion for he***y load and no strict requirement. As the keyway is greatly weakened to the axis， it is often used on a shaft with a diameter larger than 100mm.
型面联接：是利用非圆剖面的轴与相应形状的零件的毂孔配合而构成的联接，作为机械传动中的联接方式，联接机厂家，型面联接相对于传统的键联接相比，具有联接强度高，联接机，没有应力集中，可以传递大扭矩且效率高的同时也可以承受冲击载荷，并且对于一些大型机械装备来讲其拆装方便及维修便利。
is the hub hole type surface connection: the non-circular section axis and the corresponding shape parts with a connection， as the connection mode in mechanical tran***ission， compared with the traditional linkage type surface connection compared with connecting strength， no stress ， can large torque and high efficiency at the same time it can withstand the impact load， and for some large mechanical equipment for its disassembly and convenient maintenance.
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