Both ends are axially fixed using diagonal contact bearings for medium speed rotation and high precision applications, but there are also high requirements for the machining accuracy and assembly of the parts.

2、一端固定，一端支撐

2. One end fixed, one end supported

一端都是采用一對角接觸軸承進行軸向固定，一端都是采用一個深溝球軸承支撐，更常用的安裝方式，用于中速、高速旋轉(zhuǎn)；中、高精度的場合。

One end is axially fixed using a diagonal contact bearing, while the other end is supported by a deep groove ball bearing. The most commonly used installation method is for medium and high-speed rotation; Medium to high precision applications.
導軌絲杠

3、兩端支撐

3. Support at both ends

兩端都是采用深溝球軸承進行支撐，用于軸向負載小的場合，此方式比較少用。

Both ends are supported by deep groove ball bearings, which are rarely used in situations with small axial loads.

4、一端固定，一端自由

4. One end fixed, one end free

一端都是采用一對角接觸軸承進行軸向固定，另一端不做任何支撐，用于軸長較短（受空間限制）低速旋轉(zhuǎn)、中等精度的場合。

One end is fixed axially using a diagonal contact bearing, while the other end is not supported. It is used in situations where the shaft length is short (limited by space) and rotates at low speeds with medium accuracy.

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