Deep groove ball bearing is a more widely used type of overturning bearing

1、 Detailed introduction of deep groove ball bearing
Deep groove ball bearing is a more widely used type of overturning bearing. The concave groove dovetail guide rail, coupled with the excellent sealing between the dovetail guide rail and the bearing steel ball, enables the deep groove ball bearing to bear double axial loads even in the high-speed rotating environment, in addition to bearing radial loads.
The deep groove ball bearing has small friction resistance and very high limit speed ratio, and its products with airtight structure do not need to be lubricated for daily maintenance.
In addition to the basic types, deep groove ball bearings also have the following variant structures:
Deep groove ball bearing with sealing ring, deep groove ball bearing with stop groove, deep groove ball bearing with ball filling mouth, double row deep groove ball bearing
1. Deep groove ball bearing with ball loading vacancy
The important specifications of the deep groove ball bearing with the ball loading vacancy are the same as the 62 or 63 series products of the deep groove ball bearing. The inner and outer rings have ball loading vacancies, so the number of bearing steel balls is more than that of general deep groove ball bearings, and the rated dynamic load is 20%~35% larger.
This type of bearing cannot be used in places with large axial load because it is equipped with a ball loading vacancy. When using the collaborative load with radial load as the main body, the standard of radial dose dynamic load Pr<05Cor should be met.
2. Deep groove ball bearing with dust cover
The dust cover is used to prevent the lubricating grease in the bearing from leaking into the external dirt, and is divided into single-layer and double-layer structures.
The bearing with dust cover is difficult to be used for independent lubrication, and it is inconvenient to install the lubricating grease circuit and detect the lubrication condition, and it requires not high friction torque, continuous high temperature and other places. The grease filling amount of each bearing is generally the reasonable area of the bearing cavity
1/4~1/3, and the amount of grease injection can also be adjusted according to customer regulations. The added lubricating oil can generally ensure that the bearing operates at - 40 ℃~+120 ℃. If consumers have greater demand for bearings, DZR will be able to provide satisfactory solutions.
The bearing with dust cover can work effectively for a long time by greasing, without adding lubricating grease during the service life.
The deep groove ball bearing with dust cover is generally used on both sides of the rotor of the gasoline generator and motor, vehicles, large tractors, central air conditioners, fans and places with special regulations on the noise and vibration of the bearing.
3. Deep groove ball bearing with sealing ring
For bearings with rubber rings, the sealing forms are touch and non-contact, and there are differences between single layer and two sides. The touch sealing can be designed as light touch, medium touch and heavy touch according to different application positions.
The characteristics, grease filling and application fields of the bearing with rubber ring are basically the same as those of the bearing with dust cover. The difference is that there is a certain gap between the dust cover and the inner circle of the bearing with dust cover, while the gap between the sealing ring and the inner circle of the non-contact sealed ball bearing is small, and there is no gap between the sealing lip of the bearing touching the sealing ring and the inner hole itself. The sealing effect is obvious, but the friction is increased.
The 60 and 62 series ultra-small bearings are mostly used in places with low noise. Both open and closed test bearings (with dust cover or sealing ring) can clearly put forward the requirements of low noise and low vibration when ordering.
4. Deep groove ball bearing with stop groove and stop ring
The structure with stop groove, stop ring and boss on the outside can realize accurate axial positioning and optimize the casing installation structure.
The deep groove ball bearing with stop groove and stop ring is generally used for vehicles, large tractors and other relevant working positions.