In the industrial society, bearing is a necessary component. With bearing, people can change one movement form into another, or reduce the friction between two contact surfaces, but bearing is well known. Most people may not know about the bearing bush. Do you know what the bearing bush is? What is the difference between it and bearing? According to our understanding, what is bearing bush? What is the difference between bearing bush and rolling bearing?

What is a bearing bush?

Bearing bush, also known as "sliding bearing". For example, the sliding bearing made of copper is lubricated by the oil groove on the friction surface of the copper tile, which plays a "supporting" role similar to the ball bearing and reduces the friction of the shaft.

What is the difference between bearing bush and rolling bearing?

First of all, there are many kinds of bearings, and the bearing bush belongs to sliding bearing. This type of bearing is relatively stable, not easy to damage and reliable.

Secondly, it has no noise. After adding lubricating oil, there is a layer of medium oil between the two working faces, which can greatly reduce friction loss and surface wear.

In addition, the oil film has a certain vibration absorption capacity, but the friction is a little high when it is just started. In this kind of bearing, the part supported by the shaft and bearing is called the journal, and the bearing bush is the part matched with the journal. Of course, this kind of bearing is very rare in general places, and it is only used in places where the speed is not very fast and the negative pressure is very large.

Bearing bush bearings are generally composed of inner and outer rings, rolling elements and cages. The innermost inner ring is responsible for connecting and rotating with the main shaft. If the outer ring is used in combination with the base of the bearing, it plays a certain load-bearing role. The rolling element is a shaft rolling between the inner and outer rings. Its shape, size and quantity directly affect the service life of the bearing. As long as the bearing is evenly distributed, it can prevent the rolling element from falling off and guide the lubrication of the rolling element.

There are great differences between rolling bearings and sliding bearings. The contact part of rolling bearings is a point, while the contact part of sliding bearings is a surface. Secondly, their motion modes are different. The motion mode of sliding bearings is sliding.