Linear guide rail and linear module are the key transmission components in today's automation equipment. The stability of performance directly affects the operation of the equipment, and the noise analysis in the process of movement is also something we must understand. Today, we will analyze with you which conditions are easy to cause noise.

1、由于不同的设备的预压也不同，当预压不同就会出现噪音。所谓的预压，就是指直线导轨滑块翻滚体在轨迹上的预紧力，也叫配合度。直线导轨滑块预压等级分为轻预压，中预压，中预压，超重预压。不同预压方式的选用条件如下：

1. Due to the different preloading of different equipment, noise will appear when the preloading is different. The so-called preloading refers to the preload of the rolling body of the linear guide slider on the track, also known as the degree of fit. The preloading grade of linear guide slider is divided into light preloading, medium preloading, medium preloading and overweight preloading. The selection conditions of different preloading methods are as follows:

轻预压：适用于负荷方向必定，轰动，冲击力小，2轴并排使用的设备。精度请求不高，单请求滑动阻力小的设备。比如：射束焊接机械，装订机械，主动包装机，通常工业机械的XY轴，主动门窗加工机，焊接机等；

It is suitable for small preload, side by side impact of equipment. The precision request is not high, and the single request sliding resistance is small. For example: beam welding machine, binding machine, active packaging machine, XY axis of industrial machinery, active door and window processing machine, welding machine, etc;

中预压：有悬臂负荷或力矩作用的设备，单轴使用的设备，轻负荷且请求高精度的设备。比如，磨床作业台进给轴，主动涂装机，工业机械人，测量器，精细XY渠道等；

Medium preloading: equipment with cantilever load or moment, equipment with single shaft, equipment with light load and high precision. For example, grinder table, feed shaft, active coating machine, industrial robot, measuring device, fine XY channel, etc;

重预压：请求高刚性，轰动冲击力大的设备，高负荷重切削的机床。比如：机械加工基地，NC车床，磨床的砂轮进给轴，刀具导向部等。

Heavy preloading: high rigidity, high impact equipment, high load cutting machine. For example: machining base, NC lathe, grinding wheel feed shaft of grinder, tool guide part, etc.

超重预压：请求更高的刚性，轰动冲击力很大，比如：作业机械的Z轴以及重预压适用机械。

Overweight preloading: it requires higher rigidity and great impact, such as z-axis of operation machinery and applicable machinery of heavy preloading.

2、在尘埃大的环境下出现直线导轨的噪音状况;在这种状况下，可以挑选带防尘装备的滑块同时增加设备的防尘措施，比如风琴罩防护

2. In the dusty environment, the noise of linear guide rail appears; in this case, you can choose the slider with dust-proof equipment, and increase the dust-proof measures of equipment, such as organ cover protection

3、油脂不同也会产生噪音;一些客户由于考虑到机台加油不方便，便使用高强度油脂，粘性格外大，形成翻滚体摩擦变大，使得噪音加大，或许有的设备厂商加油不勤快，也会使得噪音加大，这么的话，也会降低设备的使用寿限。

3. Different oils and fats also produce noise. Some customers use high-strength oils and fats because it is inconvenient to refuel the machine. The viscosity is especially large, and the friction of the rolling body becomes larger, which increases the noise. Maybe some equipment manufacturers are not diligent in refuelling, which also increases the noise. In this way, the service life of the equipment will be reduced.

4、选型不正确；一些设备负载很轻，但是由于许多客户不会核算其动负载，觉得选大不选小，致使其轻负载大导轨，肯定也会使得噪音加大，电机超负载运转，致使其寿限变短，建议客户在采购选型之前使用工业计算器选型或者询问技术工程师。

4. Incorrect selection; some equipment load is very light, but because many customers can't calculate its dynamic load, they think that choosing large load or not choosing small one will lead to its light load and large guide rail, which will certainly increase the noise, overload operation of motor, and shorten its service life. It is suggested that customers use industrial calculator to select type or ask technical engineers before purchasing type selection.