一個(gè)切向鍵只能傳遞一個(gè)方向的轉(zhuǎn)矩，傳遞雙向轉(zhuǎn)矩時(shí)，須用互成120°～130°角的兩個(gè)鍵。用于載荷很大，對(duì)中要求不嚴(yán)的場(chǎng)合。由于鍵槽對(duì)軸削弱較大 ，常用于直徑大于100mm的軸上。

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 heavy 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.

花鍵聯(lián)接由內(nèi)花鍵和外花鍵組成。內(nèi)、外花鍵均為多齒零件，在內(nèi)圓柱表面上的花鍵為內(nèi)花鍵，在外圓柱表面上的花鍵為外花鍵。顯然，花鍵聯(lián)接是平鍵聯(lián)接在數(shù)目上的發(fā)展。

The connection of the spline is made up of the inner and outer spline. The inner and outer spline are multi tooth parts, and the spline on the surface of the inner cylinder is the inner spline, and the spline on the outer cylindrical surface is the outer spline. It is  that the spline connection is the development of the number of flat bond connecti.

凡是在軸轂聯(lián)接中不用鍵、花鍵或銷時(shí)的聯(lián)接，統(tǒng)稱為無(wú)鍵聯(lián)接。無(wú)鍵聯(lián)接中我們介紹兩個(gè)常用的型面聯(lián)接和過(guò)盈配合聯(lián)接。

The connection of no key, spline or pin in the hub connection is called the keyless connection. In keyless joins, we two commonly used type face joins and interference fit connecti.

勝過(guò)機(jī)用虎鉗的柔性虎鉗，在裝夾中能有效防止工件的翻轉(zhuǎn)、傾斜，克服了機(jī)用虎鉗因配合間隙大導(dǎo)致工件受力不均、加工發(fā)顫等現(xiàn)象；解決了現(xiàn)有輕型、精密工件加工時(shí)裝夾不可靠的問(wèn)題。

Flexible than vice machine vise, the clamping can effectively prevent the workpiece turning and tilt, overcome the machine vise for clearance to workpiece uneven stress, etc. to solve the phenomenon of processing tremble; the existing light and precision workpiece clamping reliability of the fashion。