Commonly used bearings for motors - deep groove ball bearings

The most common type of bearing used in electric motors is the deep groove ball bearing. In the field of industrial motors, the use of deep groove ball bearings accounts for more than 70% of the total use of bearings. In terms of the quantity used, the proportion will be even greater. Therefore, if electrical engineers can be very familiar with deep groove ball bearings, they can understand the application of motor bearings to a large extent.

Deep groove ball bearings, the previous domestic standard is called radial ball bearings. As the name implies, this type of bearing is a type of rolling bearing that bears a centripetal load and the rolling elements are spherical. The centripetal load mentioned here is the so-called radial load. Therefore, the main load bearing capacity of deep groove ball bearings is in the radial direction.

At the same time, due to the structural characteristics of its groove, the bearing can bear a certain axial load. The axial load capacity of deep groove ball bearings is much weaker than the radial load capacity. Therefore, under the condition of axial load, it is necessary to check the life of the deep groove ball bearing to ensure that the bearing can achieve the expected effect of operation under this load.