What is the working principle of the bearing?

Bearings are indispensable mechanical parts in mechanical equipment. Bearings have been widely used in various fields. Bearings consist of inner ring, outer ring, cage and rolling elements. How much do you know about the working principle of bearings?

Bearings are of vital importance in mechanical design and have an irreplaceable role. The rolling bearing developed on the basis of bearing, its working principle is to replace the sliding friction by rolling friction. Generally, the ferrule, a set of rolling elements and a cage are composed of two ferrules, which are highly versatile, standardized and highly serialized. Mechanical base parts. Due to the different working conditions of various machines, various requirements are imposed on the rolling bearing in terms of load capacity, structure and performance. Therefore, rolling bearings need to have a variety of structures.

For sealed bearings, plus a lubricant and seal, it is called six large pieces. The names of the various bearing types are often named according to the name of the rolling element. The role of various parts in the bearing is: for the radial bearing, the inner ring is usually tightly fitted with the shaft and operates together with the shaft, and the outer ring is usually in a transitional fit with the bearing seat or the mechanical housing bore to support. However, in some cases, there is also an outer ring running, the inner ring is fixed to support or the inner ring and the outer ring are simultaneously operated.

For a thrust bearing, a shaft ring that fits tightly with the shaft and moves together, and a seat ring that is in a transitional fit with the bearing housing or the mechanical housing bore and serves as a support. The rolling elements are usually evenly arranged between the two ferrules by means of a cage in the bearing, and its shape, size and number directly affect the bearing capacity and performance of the bearing. In addition to the uniform separation of the rolling elements, the cage can also function to guide the rotation of the rolling elements and improve the lubrication performance inside the bearing.