Reasons for premature aging of linear guide rail: we know that any mechanical product has a certain service life, so we need to find out the problems as early as possible and maintain the service life of the product! Next, the guide screw manufacturer will elaborate the reasons for premature aging of linear guide rail and how we should deal with these problems for you. Through more than ten years of experience, we can judge the linear guide rail Causes of premature aging: too tight fitting, poor lubrication, misaligned installation, strong vibration, material fatigue, pollution and corrosion, etc.

　　1、直线导轨带得太紧:导轨被迫将内圈放入轴颈，轻则会造成滚道圈轨道底部严重磨损，重则在滑块内侧，外圈与滚珠会有裂纹或剥落。原因:球与滑块之间的间隙过小，转矩增大，摩擦增大，轴承工作温度过高，使轴承的磨损和疲劳加剧而失效。解决方案:恢复导轨径向间隙，减少干扰。

　　1. The linear guide rail is too tight: the guide rail is forced to put the inner ring into the journal. If it is light, it will cause serious wear at the bottom of the track of the raceway ring. If it is heavy, it will be inside the slider. The outer ring and the ball will crack or peel off. Causes: the clearance between the ball and the slider is too small, the torque is increased, the friction is increased, and the working temperature of the bearing is too high, which makes the wear and fatigue of the bearing increase and the bearing fails. Solution: restore radial clearance of guide rail and reduce interference.

　　二、直线导轨润滑:其原因是润滑脂严重缺乏或润滑脂干燥老化。由于电机高速运行时产生的摩擦热，轴承温度过高而氧化变色，轴承的球、保持架、内圈及其轴颈等性能呈褐色或蓝色。解决方案:根据电机的运行时间、环境温度、负载状态、油脂质量等4个因素，确定其换油及换油时间。一般电机运行6000~10000h后应补充一次。10000~20000h运行中换油一次，2根及4根以上电机换油量为轴承室容积的1/2~2/3，锂基润滑脂(代号zl-2)应使用。

　　2、 Linear guide rail lubrication: the reason is serious lack of grease or aging of grease. Due to the friction heat generated by the high-speed operation of the motor, the bearing temperature is too high and the oxidation discoloration occurs. The ball, cage, inner ring and Journal of the bearing are brown or blue. Solution: according to the four factors of motor operation time, environment temperature, load state and grease quality, determine the oil change and oil change time. Generally, the motor shall be supplemented once after running for 6000-10000h. Oil change shall be carried out once in 10000-20000 h operation. The oil change capacity of two or more motors is 1 / 2-2 / 3 of the bearing chamber volume. High quality lithium-based grease (code ZL-2) shall be used.

　　3.直线导轨振动强:电机核心失效时，轴承振动强。其原因是:铁芯受热变形;电动机轴承老化;转轴弯曲变形大;端盖止动处的紧固螺栓因振动松动;地基薄弱使轴承振动。解决方案:铁芯小车，用有机硅清漆1052浸渍硅钢片表面并打开缝隙;更换同类型轴承;出口转子铁芯对准轴弯曲部分;采用180°对称法;上紧端盖止动螺栓;加固基础，拧紧地脚螺栓。

　　3. Strong vibration of linear guide rail: when the motor core fails, the bearing vibration is strong. The reasons are: the iron core is deformed by heat; the motor bearing is aged; the shaft is bent and deformed greatly; the fastening bolts at the end cover stop are loose due to vibration; the bearing vibrates due to the weak foundation. Solution: iron core trolley, impregnate the silicon steel sheet surface with silicone varnish 1052 and open the gap; replace the same type of bearing; align the iron core of the outlet rotor with the bending part of the shaft; use the 180 ° symmetry method; tighten the end cover stop bolt; strengthen the foundation and tighten the foundation bolt.

　　四、直线导轨污染腐蚀:此时，导轨与球体表面出现红色、褐色斑点腐蚀，与新的轴承噪音相比。解决方案:装配轴承应保持环境、工具和操作的清洁;彻底清洁轴承;更换高质量的锂润滑脂

　　4、 Pollution and corrosion of linear guide rail: at this time, there are red and brown spots on the surface of guide rail and ball, compared with the new bearing noise. Solution: keep environment, tools and operation clean when assembling bearing; clean bearing thoroughly; replace high quality lithium grease

　　直线导轨的作用是导向和支撑。为了保证机床具有较高的加工精度，要求导轨和直线具有较高的导轨精度和良好的运动稳定性。在设备运行过程中，被加工工件的加工过程中会产生大量的腐蚀性粉尘和烟尘。基于这些烟雾和灰尘沉积表面的导轨和直线轴大量很长一段时间,它有一个伟大的对设备的加工精度的影响,并将表面形成腐蚀斑点的直线轴导轨,缩短设备的使用寿命。为了使机床工作正常稳定，保证产品的加工质量，要认真做好导轨、直轴的日常保养。

　　The function of linear guide is to guide and support. In order to ensure the high machining accuracy of the machine tool, it is required that the guide rail and the straight line have high precision and good motion stability. In the process of equipment operation, a large number of corrosive dust and dust will be produced during the processing of the processed workpiece. Based on these smoke and dust deposition surface of the guide rail and linear axis for a long time, it has a great impact on the machining accuracy of the equipment, and will form corrosion spots on the surface of the linear axis guide rail, shorten the service life of the equipment. In order to ensure the normal and stable operation of the machine tool and the processing quality of the products, the daily maintenance of the guide rail and the straight shaft should be done well.

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