What is deep groove ball bearing
Deep groove ball bearing, formerly known as single-row centripetal ball bearing, is the most widely used rolling bearing. It is characterized by small friction resistance, high speed, can be used to bear radial load or radial and axial combined load at the same time on the machinery, can also be used to bear axial load on the machinery, such as small power motors, automobile and tractor gearboxes, machine tool gearboxes, general machinery, tools and so on.
Characteristics of deep groove ball bearing
Deep groove ball bearings are the most commonly used rolling bearings. Its structure is simple and easy to use. Mainly used to bear radial load, but when the radial clearance of the bearing is increased, it has the performance of a certain angular contact ball bearing, and can bear radial and axial combined load. When the speed is high and the thrust ball bearing is not suitable, it can also be used to bear pure axial load. Compared with other types of bearings with the same specification and size as deep groove ball bearings, this kind of bearings has small friction coefficient and high limit speed. But not impact resistance, not suitable for heavy load.
Application of deep groove ball bearing
Deep groove ball bearings can be used in gearboxes, instruments and meters, motors, household appliances, internal combustion engines, traffic vehicles, agricultural machinery, construction machinery, engineering machinery, roller type roller skates, yo-yo, etc.
Matters needing attention when using deep groove ball bearing
1.Shaft and deep groove ball bearing room tolerance selection and control: deep groove ball bearing pressed into deep groove ball bearing should rotate flexibly without blocking sense. If there is obvious rotation is not flexible, it indicates that the size of the shaft is too large and the tolerance should be reduced. If the deep groove ball bearing has obvious rustling sensation when rotating by hand after pressing into the shaft, it may be that the tolerance of the shaft is too large or the roundness of the shaft is not good. Therefore, roundness should also be controlled when controlling the tolerance of shaft and deep groove ball bearing chamber. At present, many domestic manufacturers only control the tolerance, but do not control the roundness.
2. Assembly mode of deep groove ball bearing: because deep groove ball bearing is a high-precision product, improper assembly is easy to cause damage to the groove of deep groove ball bearing, leading to damage of deep groove ball bearing. Deep groove ball bearings should have special dies during assembly and can not be knocked at will. When they are pressed into the shaft, they can only be stressed by small rings and only by large rings when they are pressed into large rings. The assembly requires the use of air pressure or hydraulic pressure. The upper and lower dies should be outside the horizontal state when pressing the assembly. If there is an inclination, the groove of the deep groove ball bearing will be damaged due to the force, and the deep groove ball bearing will lead to sound.
3.The prevention of foreign body assembly: deep groove ball bearings are installed on the rotor to do dynamic balance when it is easy to put the iron filings generated during dynamic balance into deep groove ball bearings, so it is best to install deep groove ball bearings before dynamic balance. Some manufacturers in order to facilitate assembly, assembly in the deep groove ball bearing room coated with some oil or grease lubrication effect, but often it is difficult for the operator to control the amount, if the oil or grease in the deep groove ball bearing room left more, in the deep groove ball bearing rotation is easy to enter the deep groove ball bearing along the shaft. The deep groove ball bearing chamber is best not coated with oil or grease, if not coated, it should be controlled not to have accumulation in the deep groove ball bearing chamber.
4.The prevention of paint rust: paint rust is characterized by more sealed motor, motor in assembly sound is very good, but after some time in the warehouse, the abnormal sound of the motor becomes very large, remove deep groove ball bearings have serious rust phenomenon. In the past, many manufacturers will think it is the problem of deep groove ball bearings. After our continuous publicity, now the electrical machinery factory has realized that it is mainly the problem of insulating paint. The main reason for this problem is that the acid substances released by the insulating paint form corrosive substances under a certain temperature and humidity, and the groove of the deep groove ball bearing is corroded, leading to the damage of the deep groove ball bearing. At present, the only way to solve this problem is to choose good insulating paint and assemble it after a period of ventilation after drying.
The price of deep groove ball bearing
The price of deep groove ball bearing is affected by many factors such as market, material and quotation. If you want to know the specific price of deep groove ball bearing，please contact us to make enquiries.
Supplier of deep groove ball bearing:BMB Bearings
BMB Bearings is the complete one-stop supplier of OEMs and wholesalers purchasing high-precision, miniature ball bearings, industrial ball bearing related products, as well as related professional services, including world-class engineering and design. If you have any need, please feel free to contact us .