Note linear bearing vibration and noise problems

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In order to obtain the best operating performance linear bearings, the fit between the inner ring and the shaft and the outer ring of the bearing housing bore must be correct. With surface bonding is not s ufficient, bearing rings may be on the shaft or a circular motion in a straight line bearing hole. This phenomenon is called peristalsis. Once the mating surface started to move, bearing rings will begin to excessive wear, and may damage the shaft and bearing, the abrasive debris may enter the bearing, causing abnormal heat or vibration.bearing roller bearings

Peristaltic often not only by axial clamping bearing to prevent. Must provide the necessary interference fit for the to prevent peristalsis bear rotary linear load bearing rings. Withstand static load bearing rings generally do not require the use of an interference fit, unless because of the vibration caused by contact corrosion.

In order to select the most suitable fit, you must consider the following:

1, the direction of the load

2, the characteristics of the load

3, the size of the load

4, the temperature conditions

5, the installation and removal of conditions

About the linear bearings installed in the thin-walled bearing hole or hollow shaft, you must provide a larger than normal interference fit.

Not recommended for high-precision or tight bore split bearing with, or split bearing may cause deformation of the outer ring.

Linear bearings abnormal sound, a new problem is an old problem. Say that it is a new problem, because it is bearing in recent years by the value of the low vibration mute direction development, bearing constantly improve the quality problems exposed in the process. It is the old problem, no bearing sound quality put forward higher requirements early in the pursuit of low vibration, bearing abnormal sound is objective existence, bearing vibration value reduced to a certain level, abnormal sound come to the fore.bearing manufa cturers

Most of the low-noise, vibration value of Japan abnormal sound three types of different grades of linear bearings, the vibration peak from low to high order: low-noise bearings, bearing of abnormal sound, vibration value of bearings. This shows that there is abnormal sound bearing vibration acceleration level peak in the bearing between the low noise and vibration values. Therefore, to evaluate the bearing abnormal sound vibration rms error rate is higher.