Deep groove ball is a more common type of rolling bearing, the basic deep groove ball bearing is composed of an outer ring, an inner ring, a group of steel balls and a group of cages, bearing types are single and double row two, deep groove ball structure is also divided into sealing and open two kinds of structure, open refers to the bearing without sealing structure, sealing type deep groove ball is divided into dust seal and oil seal, The dust proof sealing cover material is steel plate stamping, which only prevents dust from entering the bearing raceway. The oil proof type is contact oil seal, which can effectively prevent the grease spillover in the bearing.

Single row deep groove ball bearing type code 6, double row deep groove ball bearing code 4. Its structure is simple, easy to use, is widely produced and widely used a kind of bearing, deep groove ball bearing mainly bear radial load, but also can bear radial load and axial load at the same time. When it is only under radial load, the contact Angle is zero. When the deep groove ball bearing has a larger radial clearance, it has the performance of angular contact bearing and can withstand larger axial load. The friction coefficient of deep groove ball bearing is very small and the limit speed is very high.

Deep groove ball bearing has simple structure, and is easy to achieve higher manufacturing accuracy compared with other types, so it is convenient for serial mass production, manufacturing cost is also low, and it is widely used. In addition to the basic type of deep groove ball bearings, there are a variety of variant structures, such as: deep groove ball bearings with dust cover, deep groove ball bearings with rubber sealing ring, deep groove ball bearings with a stop groove, deep groove ball bearings with ball notched large load capacity, double row deep groove ball bearings.

Deep groove ball bearings are representative of rolling bearings, widely used, suitable for high speed or even extremely high speed operation, and very durable, without frequent maintenance. This kind of bearing has small friction coefficient, high limit speed, low manufacturing cost and easy to achieve high manufacturing accuracy. The size range and form are varied, used in precision instrument, low noise motor, automobile, motorcycle and general machinery and other industries, is a kind of mechanical industry is used more widely.