切向鍵聯(lián)接：它由兩個(gè)普通楔鍵組成。其上下兩面（窄面）為工作面，其中之一面在通過軸心線的平面內(nèi)。工作面上的壓力沿軸的切線方向作用，能傳遞很大的轉(zhuǎn)矩。

Tangent key join: it cists of two common wedges. Both sides of the upper and lower sides (narrow surface) are working faces, one of which is in the plane of the axis of the axis. The pressure on the working face acts along the direction of the shaft and transmit a large torque.

與平鍵聯(lián)接比較，花鍵聯(lián)接在強(qiáng)度、工藝和使用方面有下列特點(diǎn)：在軸上與轂孔上直接而均勻地制出較多的齒與槽，故聯(lián)接受力較為均勻；因槽較淺，齒根處應(yīng)力集中較小，軸與轂的強(qiáng)度削弱較少。

Compared with the flat bond connection, the spline connection has the following characteristics in strength, 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 small, and the strength of the shaft and hub is weakened less.

型面聯(lián)接：是利用非圓剖面的軸與相應(yīng)形狀的零件的轂孔配合而構(gòu)成的聯(lián)接，作為機(jī)械傳動(dòng)中的聯(lián)接方式，型面聯(lián)接相對(duì)于傳統(tǒng)的鍵聯(lián)接相比，具有聯(lián)接強(qiáng)度高，沒有應(yīng)力集中，可以傳遞大扭矩且的同時(shí)也可以承受沖擊載荷，并且對(duì)于一些大型機(jī)械裝備來講其拆裝方便及維修便利。

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 transmission, 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.