Sliding bearing and other types of bearings

Bearings are the design nodes of mechanisms and machines. Their task is to support or direct axes, as well as various shafts. If the shaft of the shaft is sliding in the bearing along the very supporting surface, it is a sliding bearing. But in the presence of rollers or balls between the shaft neck and directly supporting surface, they are called rolling bearings. The main task of bearings of all kinds is to reduce frictional forces between parts of the machine that move with fixed elements of the construction, because it is because of these forces that heating, wear and frequent energy losses occur during operation.

Bearing slip - what is it?

In fact, it is a massive metal support, which has a cylindrical hole. It is in it install a bushing, and sometimes a liner, which is based on antifriction material. Zapfa, or, more simply, the shaft neck, which has a small clearance, must enter into the boring of the bushing of the bearing itself. In order to reduce friction and wear, the bearings must be lubricated.

The sliding bearing has a number of performance characteristics that are determined based on its dimensions, as well as several additional characteristics. These include the speed with which the shaft rotates and the viscosity that the lubricant has.

In order to lubricate the slide bearing, you can resort to using any liquid that has a sufficient viscosity. It can be water, various oils, kerosene, as well as gasoline, emulsions based on water and oils, metals that have a liquid structure. In practice, also used for lubrication, are in a solid and ductile state, but with liquid materials for lubricating properties they can not be compared.

What is a rolling bearing

The basis of his work is rolling friction, whereas in the previous form the main idea was sliding friction. The main role in bearings of this type is played by rolling elements, which take on the main load. Thanks to this simple idea, it is possible to significantly reduce the energy loss during friction, and also to increase the wear-resistant qualities of the structural elements.

Today, rolling and sliding bearings are very widely used. Their simple design and durability of operation made the parts very popular and indispensable in many fields of application.

The spherical plain bearing is a self-leveling component that, if misaligned, allows movement. As for its inner ring, it has a convex shape of the outer contour. The outer ring is of its own structure, correspondingly, of a concave shape. Such a bearing is designed to affect the static forces that arise during oscillatory movements. It is indispensable for bends repeating with a periodic frequency and, of course, during a small rotation speed of the bearing.