1. The main characteristics of linear guide oil are strong adhesion, water resistance and extreme pressure resistance. The guide rail load is generally 10-100kpa, the precision machine tool is about 30KPa, the medium load is 350kPa, and the maximum load is more than 1kPa. The function of oil guide is to protect the guide rail and slide block, so that the ring will not be worn, so that the accuracy of the guide rail can be best protected for a long time.

2、有時在直線導軌上會有水接觸，如車床、加工等，經常會有水濺到直線導軌上。如果導軌油的水分離性能不好，它將被水分解。油滴進入切削液會造成切削液污染，因此導軌的水分離性能非常重要。一些精密機床由于使用方便，與導軌和液壓系統共用一種油，這就需要專用的雙用油作為液壓導軌。否則，如果只使用液壓油，由于耐磨性差，導軌會被水磨損或沖走；如果只使用導軌油，液壓系統可能有更多的淤泥和更少的壓力。液壓導軌油既有優點，又可使用兩部分。但在液壓系統中，其效果不如液壓油，也不如專用軌道油，但對輕載小型機床無害。

2. Sometimes there will be water contact on the linear guide rail, such as lathe, machining center, etc., and water often splashes on the linear guide rail. If the water separation performance of rail oil is not good, it will be decomposed by water. Oil droplets entering the cutting fluid will pollute the cutting fluid, so the water separation performance of the guide rail is very important. Some precision machine tools share one kind of oil with the guide rail and hydraulic system because of its convenient use, which requires special dual oil as hydraulic guide. Otherwise, if only hydraulic oil is used, the guide rail will be worn or washed away by water due to poor wear resistance; if only guide oil is used, the hydraulic system may have more sludge and less pressure. Hydraulic guide oil has advantages and can be used in two parts. However, in the hydraulic system, its effect is not as good as that of hydraulic oil and special rail oil, but it is harmless to light load small machine tools.

3、一些粗糙的機器有大的導軌，簡單的結構和在直線導軌中的凹坑。它們的設計是用油脂潤滑的，而且大部分都是用油脂涂抹在手上。要求所有潤滑脂為EP出彩壓型，否則，擠壓后，導軌上的殘余潤滑脂不能承受重載。進口機械的軌道潤滑大多采用集中供油方式，即將軌道油或出彩壓潤滑脂安裝在透明容器內，機械自動供油。無論使用哪種油，導軌中使用的潤滑脂都是不可回收的，大多數導軌暴露在外，不能回收利用。

3. Some rough machines have large guides, simple construction and pits in straight rails. They are designed to be greased, and most of them are greased on the hands. All grease is required to be EP extreme pressure type, otherwise, the residual grease on the guide rail can not bear heavy load after extrusion. The rail lubrication of imported machinery mostly adopts centralized oil supply mode, that is, the rail oil or extreme pressure grease is installed in a transparent container, and the machinery supplies oil automatically. No matter what kind of oil is used, the grease used in the guide rail is not recyclable. Most of the guide rails are exposed and cannot be recycled.

4、導軌潤滑粘度選擇：導引油粘度僅為32, 68, 150，220為四。與液壓系統共用的液壓導油只有一個規格32號，它適用于額定壓力低于7MPa。如果滑動臺的滑動速度小于10m/min，則滑動臺的載荷壓力小于70KPa，68如果滑動臺的滑動速度大于10m/min，則機械設備通常只使用32或68#。

4. Guide oil viscosity selection: guide oil viscosity is only 32, 68, 150, 220 is four. The hydraulic guide oil shared with the hydraulic system has only one Specification No. 32, which is suitable for rated pressure less than 7MPa. If the sliding speed of the sliding table is less than 10m / min, the load pressure of the sliding table is less than 70kpa. 68 If the sliding speed of the sliding table is greater than 10m / min, the mechanical equipment usually only uses 32 or 68 μ M.

5、滾珠絲杠、螺母的抗振和穩定性抗振是指直線導軌在給定工況下承受強迫振動和沖擊的能力，而穩定性是指自激振動的性能。

5. The anti vibration and stability anti vibration of ball screw and nut refers to the ability of linear guide bearing forced vibration and impact under given conditions, while stability refers to the performance of self-excited vibration.

6、導軌的剛度即導軌抵抗變形的能力。變形會影響零件的相對位置和導軌精度，這對精密機械和儀器尤其重要。導軌的變形包括導軌本體的變形和導軌的接觸變形，兩者都應考慮。

6. The stiffness of the guide rail is the ability of the guide rail to resist deformation. Deformation will affect the relative position of parts and the precision of guide rail, which is particularly important for precision machinery and instruments. The deformation of guide rail includes the deformation of guide body and contact deformation of guide rail, both of which should be considered.

7、滾珠螺母結構工藝性，滾珠螺母結構工藝性是指加工導軌副（包括導軌副所在的部件）的難易程度。在滿足設計要求的前提下，建議使制造和維護盡可能方便和低成本。

7. Ball nut structure technology, ball nut structure technology refers to the difficulty of processing guide rail pair (including the parts of the guide pair). On the premise of meeting the design requirements, manufacturing and maintenance must be made as convenient and low-cost as possible.