The structure and working principle of deep groove ball bearings

Deep groove ball bearing is a common rolling bearing. Its structure and working principle are as follows:

structure:
Deep groove ball bearings consist of inner rings, outer rings, steel balls and cages.

Inner ring: located inside the shaft, usually a cylindrical part. It is the part in direct contact with the shaft.

Outer ring: Located on the outside of the bearing, it is usually a cylindrical part. It is the part that comes into contact with the external environment.

Steel Ball: The rolling element located between the inner and outer rings. The steel balls are kept at a certain distance through the cage, allowing them to roll between the inner and outer rings.

Cage: Also known as a retainer or cage, it is used to maintain the spacing of steel balls and ensure that they are evenly distributed. Cages are usually made of metal or plastic materials.

working principle:
The working principle of deep groove ball bearings is based on rolling friction and rolling motion.

When the radial force loaded on the deep groove ball bearing acts on the bearing, the deep groove structure between the inner ring and the outer ring allows the steel ball to roll inside the bearing. This rolling motion reduces friction and therefore energy loss.

At the same time, deep groove ball bearings can also withstand a certain axial force, although their axial load carrying capacity is relatively low. This is due to the role of the cage, which ensures that the steel ball maintains a certain position in the axial direction.

The rolling friction and rolling motion of the deep groove ball bearing enable it to withstand forces from different directions and convert them into rotational motion. This makes deep groove ball bearings ideal for many applications, especially where both radial and axial loads need to be supported.

It is important to note that the performance of deep groove ball bearings is affected by correct installation, proper lubrication and regular maintenance to ensure long life and good operating condition.