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. Dust seal material for steel sheet stamping, only to prevent the dust from entering the bearing roller. Oil - type oil - type is a contact type oil seal, which can effectively prevent the grease inside the bearing.

Bearing type:
1. deep groove ball bearing.
2. Deep groove ball bearing 2, with dust cover.
3. Deep groove ball bearing 3, with dust cover, sealing ring.
4. the outer ring is provided with a stopping groove and check of deep groove ball bearing ring.
5. there are deep groove ball bearings gap.
6. double row deep groove ball bearing.

According to the size of deep groove ball bearings can be divided into:
(1) a miniature bearing, bearing the nominal diameter of the outer diameter of the 26mm.
(2) small bearing - Nominal outside diameter size range of 28-55mm bearing.
(3) small and medium sized bearings - bearing in nominal diameter range of 60-115mm.
(4) in the large bearing - nominal diameter range of 120-190mm bearing.
(5) a large bearing, bearing a nominal diameter range of 200-430mm.
(6) a large type bearing, bearing the nominal diameter of the outer diameter of the outer diameter of the bearing is 440mm.

Deep groove ball bearings imported bearings are used to withstand pure radial load, also can bear radial load and axial load. When it is only subjected to pure radial load, the contact angle is zero. When the 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 limit speed is very high, especially under the axial load a lot of high speed operation, deep groove ball bearing thrust ball bearings are more advantages than that. Deep groove ball bearings are the most representative, widely used.

In the structure of each ring of deep groove ball bearing has cross section is about one-third of the ball the equatorial circumference of the continuous groove type raceway. Deep groove ball bearings are mainly used to bear radial load, also can withstand the axial load. When the bearing radial clearance increases, with the nature of angular contact ball bearing, the axial load bearing two alternating direction. Compared with other types of bearings, the bearing friction coefficient is small, the limit speed is high, the precision is high, and it is the first choice for the user. Deep groove ball bearing has the advantages of simple structure, convenient use, is the largest production volume, a class of imported bearings are most widely used.

Applies to high speed and even very high speed of operation, and very durable, without the need for regular maintenance. This kind of bearing friction coefficient is small, extreme high speed, simple structure, low manufacturing cost, easy to manufacture high precision. Varied in size and form, application in precision instruments, low noise motor, automobile, motorcycle and general machinery industry, is the use of the most widely used in the machinery industry. Mainly bear radial load, also can withstand a certain amount of axial load of deep groove ball bearings can be used for gear box, instrument and meter, motor, household appliances, internal combustion engine, transport vehicles, agricultural machinery, construction machinery, engineering machinery etc.

Select bigger radial clearance axial bearing capacity increases, under pure radial force when the contact angle is zero. When there is axial force, the contact angle is greater than zero. General use of the shape of the ram, the vehicle system to maintain the solid cage, sometimes also used nylon.

Deep groove ball bearing is installed on the shaft and the bearing axial clearance range, limit the axial displacement of the shaft or housing two directions. Therefore, it can be used in axial orientation. In addition, this kind of bearing has certain self-aligning capability, when the inclined 2 '- 10' relative to the shell hole can still work normally, but it had a certain effect on the bearing life. Deep groove ball bearing retainer for stamping steel ribbon cage, large bearing of the metal entity keep a car.