Deep groove ball bearing is the most common type of rolling bearing. The basic type of deep groove ball bearing consists of an outer ring, an inner ring, a steel ball and a group of cage. There are two kinds of single and double row deep groove ball bearing type, deep groove ball structure also seal and open structure, open is refers to the bearings without sealing structure, sealing type deep groove ball for sealing and dustproof and anti oil seal.

Deep groove ball bearings mainly bear radial load, also can bear radial load and axial load. When the radial load is only subjected to the radial load, the contact angle is zero. When deep groove ball bearings with a larger radial clearance, with angular contact bearing performance, can bear large axial load, deep groove ball bearing friction coefficient is small, the speed limit is also very high.

Deep groove ball bearings are the most representative and widely used. Suitable for high speed and even high speed operation, but also very durable, no regular maintenance. This kind of bearing friction coefficient is small, extreme high speed, simple structure, low manufacturing cost, easy to manufacture high precision. Size range and variety of forms, applications in precision instruments, low noise motors, automobiles, motorcycles and general machinery and other industries, is the most widely used in the mechanical industry, a class of bearings. Mainly bear the radial load, but also can bear a certain amount of axial load.