Deep groove ball bearings are the most commonly used rolling bearings. Its structure is simple and easy to use. The basic deep groove ball bearing consists of an outer ring, an inner ring, a set of steel balls and a set of cages. The deep groove ball bearing types are single row and double row. The deep groove ball structure is also divided into two types: sealed and open. The open type refers to the bearing without sealing structure. The sealed deep groove ball is divided into dustproof seal and oil proof. seal. The dust seal cover material is stamped from steel plate, which is simple to prevent dust from entering the bearing raceway. The oil-proof type is a contact type oil seal, which can effectively prevent the grease inside the bearing from overflowing. Deep groove ball bearings are mainly used to bear radial loads, but when the bearing radial clearance is increased, it has certain angular contact ball bearing performance and can withstand combined radial and axial loads. It can also be used to withstand pure axial loads when the rotational speed is high and thrust ball bearings are not suitable. Compared with other types of bearings of the same size as deep groove ball bearings, these bearings have a small coefficient of friction and a high limit speed. However, it is not resistant to impact and is not suitable for heavy loads. However, the deep groove ball bearing has a simple structure and is easy to achieve higher manufacturing precision than other types.

Features and applications

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 snap grooves

Deep groove ball bearings with large load capacity of ball notches

double row deep groove ball bearings.

And according to bearing size, there are many types deep groove ball bearing too:
(1) Miniature bearings---bearings with a nominal outside diameter less than 26 mm
(2) Small bearings--bearings with outer diameter between 28-55mm;
(3) Small and medium-sized bearingsbearings with outer diameter between 60-115mm;
(4) Medium and large bearings----bearings with outer diameter between 120-190mm
(5) Large bearings---bearings with outer diameter between 200-430mm;
(6) Extra large bearings--bearings with outer diameter between 440mm or more.

6217zz 6217-2RS high presion Deep Groove Ball Bearings 6217 2rs ZZ

can be used in Motor, automobile and tractor gearboxes, machine tool gearboxes, home appliances, machine tools, water pumps, agricultural machinery, textile machinery, gearboxes, instrumentation, household appliances, internal combustion engines, transportation vehicles, construction machinery, engineering machinery, etc. etc.