Linear bearing is a low-cost linear motion system, which is used for infinite stroke and cylindrical shaft. Because the bearing ball is in point contact with the shaft, the service load is small. The steel ball rotates with minimal friction resistance, so as to obtain high-precision and stable motion. What if the linear bearing fails in use? Disassembly and inspection is a good method, but this method is time-consuming. It is a small method that can identify or predict whether the running bearing fails without disassembly and inspection.

直線軸承出現(xiàn)故障如何檢查？

How to check if linear bearing fails?

金屬直線軸承是一種以低成本生產(chǎn)的直線運(yùn)動(dòng)系統(tǒng)，用于無(wú)限行程與圓柱軸配合使用。由于承載球與軸呈點(diǎn)接觸，故使用載荷小。鋼球以極小的摩擦阻力旋轉(zhuǎn)，從而能獲得高精度的平穩(wěn)運(yùn)動(dòng)。直線軸承在使用過(guò)程中出現(xiàn)故障了怎么辦？拆卸檢查固然是個(gè)好辦法，但這種方法比較費(fèi)時(shí)，不通過(guò)拆卸檢查即可識(shí)別或預(yù)測(cè)運(yùn)轉(zhuǎn)中的軸承是否故障的小方法。

Metal linear bearing is a low-cost linear motion system, which is used for infinite stroke and cylindrical shaft. Because the bearing ball is in point contact with the shaft, the service load is small. The steel ball rotates with minimal friction resistance, so as to obtain high-precision and stable motion. What if the linear bearing fails in use? Disassembly and inspection is a good method, but this method is time-consuming. It is a small method that can identify or predict whether the running bearing fails without disassembly and inspection.

一、通過(guò)軸承潤(rùn)滑劑的狀態(tài)進(jìn)行識(shí)別

1、 Identification by the status of the bearing lubricant

，對(duì)潤(rùn)滑劑進(jìn)行采樣分析，通過(guò)其污濁程度是否混入異物或金屬粉末等進(jìn)行判斷。此方法對(duì)不能靠近觀察的軸承或大型軸承尤為有用。

Firstly, the lubricant is sampled and analyzed to judge whether its turbidity is mixed with foreign matters or metal powder. This method is particularly useful for bearings that cannot be close to observation or large bearings.

二、通過(guò)專人或聽(tīng)音器、聽(tīng)音棒進(jìn)行軸承聲音識(shí)別

2、 The bearing sound recognition shall be carried out by special personnel or listeners and sound sticks

通過(guò)聲音進(jìn)行識(shí)別需要有豐富的經(jīng)驗(yàn)。必 須經(jīng)過(guò)充分的訓(xùn)練達(dá)到能夠識(shí)別直線軸承聲音與非軸承聲音。為此，應(yīng)盡量由專人來(lái)進(jìn)行這項(xiàng)工作。用聽(tīng)音器或聽(tīng)音棒貼在外殼上可清楚地聽(tīng)到直線軸承的聲音。

Recognition by sound requires a wealth of experience. Must be fully trained to recognize linear bearing sound and non bearing sound. Therefore, special personnel should be assigned to carry out this work as far as possible. The sound of linear bearing can be clearly heard by sticking the listener or listening stick to the shell.

三、通過(guò)直線軸承的工作溫度進(jìn)行識(shí)別

3、 It is identified by the working temperature of linear bearing

該方法屬比較識(shí)別法，于用在運(yùn)轉(zhuǎn)狀態(tài)不太變化的場(chǎng)合。為此，必 須進(jìn)行溫度的連續(xù)記錄。出現(xiàn)故障時(shí)，不僅溫度升高，還會(huì)出現(xiàn)不規(guī)則變化。

This method belongs to the comparative identification method and is suitable for occasions where the running state does not change much. For this purpose, continuous temperature recording must be carried out. In case of failure, not only the temperature increases, but also irregular changes occur.