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Influence of Bearing Installation on Vibration
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| Time：2016.11.09 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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As the bearing manufacturing technology continues to improve, reflecting the dynamic performance of one of the vibration and noise are more and more attention. Users of bearing vibration and noise of the technical characteristics of the understanding of more and more sensitive, more and more demanding.
Bearing vibration refers to the geometric center of the bearing part of the instantaneous position of the deviation from the ideal position of the movement, the bearing parts of the elastic deformation with time, as well as other bearing rotation movement necessary for all movement, known as bearing vibration.
In the choice of bearing vibration group, must be based on the specific conditions of use bearings. If the host has special requirements on the smooth operation, the vibration group should choose the appropriate bearing to meet and achieve its smooth running requirements, such as machine tool spindle. Vibration and noise on the bearing are required occasions, such as cars and aircraft, etc., should also use the corresponding vibration group of bearings in order to meet the requirements. The noise of the bearing have special requirements, such as electric fans and some household appliances, should be selected with a low noise bearings, in order to meet the requirements.
Installation of bearing housings
1, the standard type
Mounting the bearing with the setscrew can cause deformation of the bearing housing and should be avoided.
2, flange type
When mounting the flange type linear bearing, the precision of the bore surface of the bearing housing with which it is to be fitted must be accurate.
3, adjustable type (small opening type)
The bearing is perpendicular to the opening in the bearing housing, providing a uniform preload in the circumferential direction.
4, large opening type
If used in conjunction with a suitable housing, large clearance bearings can also be adjusted, and even can be preloaded.
5, installation precautions
The linear bearing into the bearing seat, it should be used to assist the work, to avoid direct impact on the end face or seal should be used evenly into the bearing, with a buffer plate, with a light percussion into; the optical axis into the linear bearings, The axis of the shaft must be aligned with the centerline of the bearing. If the shaft is inserted obliquely, the balls may fall off or cause deformation of the cage and damage to the linear bearing. The applied load should be evenly distributed throughout the bearing, especially when subjected to momentary loads , Two or more bearings shall be used. Linear bearings are not subjected to rotational loads, which can lead to accidents.
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