Deep groove ball is a common type of rolling bearing. The basic deep groove ball bearing consists of an outer ring, an inner ring, a set of steel balls and a set of cages. There are two types of deep groove ball bearings, single row and double row. The deep groove ball structure is divided into two types: sealed and open. The open type means that the bearing does not have a sealed structure. The sealed deep groove ball is divided into dust-proof and oil-proof. seal. The material of the dust-proof seal cover is stamped with steel plate, which simply prevents dust from entering the bearing raceway. The oil-proof type is a contact oil seal, which can effectively prevent the grease in the bearing from overflowing.

The single row deep groove ball bearing type code is 6, and the double row deep groove ball bearing type code is 4. Its structure is simple and easy to use. It is a type of bearing that is widely produced and widely used. Deep groove ball bearings mainly bear radial load, but can also bear radial load and axial load at the same time. When it only bears radial load, the contact angle is zero. When the deep groove ball bearing has a large radial clearance, it has the performance of an angular contact bearing and can bear a large axial load. The friction coefficient of the deep groove ball bearing is very small and the limit speed is also high.

Deep groove ball bearings have a simple structure and are easy to achieve higher manufacturing accuracy compared to other types. Therefore, they are easy to produce in series and have lower manufacturing costs, and they are extremely common. In addition to the basic type, deep groove ball bearings have various modified structures, such as: deep groove ball bearings with dust cover, deep groove ball bearings with rubber seals, deep groove ball bearings with stop grooves, and Deep groove ball bearing with large load capacity with ball gap, double row deep groove ball bearing.