Deep groove ball bearings, originally listed as radial ball bearings, are one of the most widely used rolling bearings. It is characterized by low friction resistance and high speed. It can be used on parts that can bear radial load or combined load acting both radial and axial. It can also be used on parts that bear axial load, such as low-power motors, Automotive and tractor gearboxes, machine tool gearboxes, general machines, tools, etc.
According to the size of deep groove ball bearings, it can be divided into: (1) Miniature bearings-bearings with a nominal outer diameter range of less than 26mm; (2) Small bearings-bearings with a nominal outer diameter range of 28-55mm; (3) Small and medium-sized bearings-bearings with a nominal outer diameter range of 60-115mm; (4) Medium and large bearings —- bearings with a nominal outer diameter range of 120-190mm (5) Large-sized bearings-bearings with a nominal outer diameter range of 200-430mm; (6) Extra large bearings-bearings with a nominal outer diameter range of 440mm or more.
Deep groove ball bearings are the most commonly used rolling bearings. Its structure is simple and easy to use. It is mainly used to bear radial loads, but when the bearing radial clearance is increased, it has a certain angular contact ball bearing performance, and can bear combined radial and axial loads. It can also be used to bear pure axial load when the speed is high and thrust ball bearings are not suitable. Compared with other types of bearings with the same specifications as deep groove ball bearings, this type of bearing has a low coefficient of friction and a high limit speed. But it is not resistant to impact and is not suitable for heavy loads.
After the deep groove ball bearing is installed on the shaft, the axial displacement of the shaft or the housing can be limited in the axial clearance of the bearing, so it can be axially positioned in both directions. In addition, this type of bearing also has a certain self-aligning ability. When it is inclined 2 ′ to 10 ′ relative to the housing hole, it can still work normally, but it has a certain impact on the bearing life.
Deep groove ball bearings can be used in gearboxes, instruments, motors, household appliances, internal combustion engines, transportation vehicles, agricultural machinery, construction machinery, construction machinery, roller roller skates, yo-yo, etc.