A bearing is a device to allow constrained relative motion between two or more parts, typically rotation or linear movement. Bearings may be classified broadly according to the motions they allow and according to their principle of operation as well as by the directions of applied loads they can handle. There are many different types of bearings among which the ball bearing is rather common. They have various applications. They are commonly used in machinery industry and in wheels of vehicles like cars, buses and motorcycles. It is very important to maintain them. If the maintenance is done properly, the life span of these products will be maximized.
Among all these different categories, the deep groove ball bearing is the most common one. The basic model of this product consists of an outer ring, an inner ring, steel balls and cages.
The structure of these bearings is quite simple. It is very easy to use them. Moreover, it is a kind of product which has the largest production volume and wide range of applications. They are mainly used to bear radial load, meanwhile, they can also bear some axial load. When the radial internal clearance of bearing is enlarged, they will have features of angular contact ball bearings and they can bear larger axial load. Compared to other kinds of bearing products which have the same size with them, the deep groove ball bearings have smaller coefficient of friction and higher rotation speed. Besides, they can replace thrust ball bearings to support axial loads under very high rotation speed.
When they are installed in the shaft, they can limit the axial displacement of the shaft or housing in both directions within the axial clearance. Therefore, they can make axial positioning in two directions. Additionally, this type of product has a certain ability of aligning. Most of their cages are steel stamping ribbon cages.
The manufacturing costs of them are relatively low. In addition to basic models of deep groove ball bearings, there are still many others such as deep groove ball bearings with dust cover, or with a rubber seal ring and double row deep groove ball bearings, etc.
There are many advantages of this kind of bearing products. Firstly, they are suitable for high speed and high rotation operation. Secondly, they are very durable even without regular maintenance. Thirdly, they have small friction coefficient and low costs of manufacturing. Fourthly, they have various sizes and models which can meet different requirements.
Like many other kinds of bearing products, deep groove ball bearings also have a wide range of applications such as gearboxes, instruments, motors, pumps, household appliances, internal combustion engines, agricultural machinery, construction machinery, and engineering machinery.
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