為了從直線軸承取得佳的運轉性能，內圈與軸以及外圈與軸承座孔之間的配合須正確。若配合表面接合不充分，軸承套圈可能在軸上或在直線軸承座孔中作圓周運動。這種現象稱為蠕動。一旦配合表面開始蠕動，軸承套圈將開始過度磨損，并可損傷軸和軸承座，磨料碎片可能進入軸承，引起不正常的發熱或振動。

In order to obtain good running performance from linear bearings, the fit between the inner ring and the shaft and between the outer ring and the bearing housing hole must be correct. If the mating surface is not fully engaged, the bearing race may make circular motion on the shaft or in the linear bearing housing hole. This phenomenon is called peristalsis. Once the mating surface starts to creep, the bearing collar will start to wear excessively and may damage the shaft and bearing seat. Abrasive debris may enter the bearing, causing abnormal heating or vibration.

蠕動常常不可能僅僅靠軸向夾緊軸承來防止。為防止蠕動，承受回轉載荷的直線軸承套圈須提供必要的過盈配合。承受靜止載荷的軸承套圈一般并不要求采用過盈配合，除非因為振動引起接觸腐蝕。

It is often impossible to prevent creep by simply clamping the bearing axially. In order to prevent creeping, the linear bearing ring bearing slewing load must provide necessary interference fit. Interference fit is not generally required for bearing rings bearing static load, unless contact corrosion is caused by vibration.

關于直線軸承的異常聲，是一個新問題又是一個老問題。因為它是近年來軸承由低振動值向靜音方向發展，軸承質量不斷提高過程中暴露出的問題。

The abnormal sound of linear bearing is a new and old problem. Because it is a problem exposed in the process of continuous improvement of bearing quality in recent years when the bearing develops from low vibration value to silent.

關于老問題，是因為在追求低振動的初期沒有對軸承的聲響質量提出更高的要求，但軸承異常聲是客觀存在的，一旦軸承的振動值穩定的降低到一定的水平后，異常聲就突現出來了。

As for the old problem, it is because there is no higher requirement for the sound quality of the bearing at the beginning of the pursuit of low vibration, but the abnormal sound of the bearing is objective. Once the vibration value of the bearing is steadily reduced to a certain level, the abnormal sound will emerge.

對大部分低噪聲，振動值大和有異常聲等三類不同檔次的直線軸承，它們的振動峰值按從低到高的順序排列為：低噪聲軸承，有異常聲的軸承，振動值大的軸承。

For most of the three different grades of linear bearings with low noise, high vibration value and abnormal noise, their vibration peaks are arranged from low to high: low noise bearing, bearing with abnormal noise, and bearing with high vibration value.

這說明有異常聲軸承的振動加速度級峰值處于低噪聲與振動值大的軸承兩者之間。因此，用振動有效值來評價軸承異常聲的誤判率較高。更多相關內容就來我們網站http://www.pet998.com咨詢！

This shows that the peak value of vibration acceleration level of bearing with abnormal noise is between the low noise and the high vibration value. Therefore, the error rate of using the vibration effective value to evaluate the abnormal sound of bearing is high. Come to our website for more relevant content http://www.pet998.com consulting service