The material of the deep groove ball bearing determines the service life of the bearing to a large extent. The metallurgical quality of the bearing steel GCr15 was the main reason for the early failure of the rolling bearing. The metallurgical technology has been greatly improved, and after the emergence of bearing steel and other materials, it has been greatly improved. In the failure analysis of the bearing, the proportion of bearing failure caused by raw materials has also been greatly improved, but the manufacturing material is still the main reason for bearing failure, and has a considerable relationship with the service life of deep groove ball bearings. The manufacturing process of bearings is complex, and the finished product can only be obtained after multiple processes. Among them, the technical ability and completion quality of forging, heat treatment, turning and grinding processes will affect the service life and application effect of bearings, especially heat treatment and The grinding process is the direct cause of many bearing failures, which needs to be highly valued by manufacturers.

After the deep groove ball bearing is installed, in order to check whether the installation is correct, a running inspection should be carried out. Small machines can be rotated by hand to determine if the rotation is smooth. The inspection items mainly include poor operation caused by foreign objects and indentations, unstable torque caused by poor installation and poor processing of the mounting seat, excessive torque caused by too small clearance, installation error, and sealing friction, etc. . If there is no abnormality, the power operation can be started. On the shaft and in the bearing housing, the bearing requires that its position be fixed in three directions: radial, axial and tangential.

The radial and tangential positioning is achieved by the tight fit of the bearing ring, and the axial positioning is only used in a few cases. within the clearance range. When choosing a match, you should pay attention to the following four points:

(1) The circumferential surface of the bearing ring should be well supported and the force should be uniform to reduce deformation and give full play to the bearing capacity of the bearing.

(2) The ferrule cannot slide in the tangential direction in its mating surface, otherwise the mating surface will be damaged.

(3) The free end bearing must be able to adapt to the length change of the shaft and the bearing seat hole, that is, it must have the ability to adapt to the axial position to swim within a certain range.

(4) Care must be taken to make the installation and disassembly of the deep groove ball bearing easy, saving labor, time and expense.