The sealing cover of deep groove ball bearing is mainly used to prevent the intrusion of external foreign bodies (solid foreign bodies, liquid foreign bodies) and prevent the loss of bearing lubricant. There are two sealing forms of bearing seal cover:
1. Non-contact sealing cover (sealing cover and inner ring are not in contact), including stamped steel seal cover (iron seal) and non-contact rubber seal cover.
Advantages: dust proof, relatively high speed, metal seal cover relatively low mute effect, relatively low price.
Disadvantages: There is no protection against liquid foreign bodies.
2.Contact sealing cover (sealing cover and bearing inner ring with a single lip or more lip contact), including contact rubber sealing cover and labyrinth type contact sealing cover.
Advantages: dust proof, liquid foreign body prevention, high mute effect.
Disadvantages: slightly lower speed, slightly higher price.
Therefore, there is no difference between good and bad deep groove ball bearing sealing cover, only the difference between suitable. For example: in a clean environment, it is unnecessary to use contact rubber sealing cover, which will only increase the additional cost of the manufacturer.
To sum up, the sealing type of deep groove ball bearing is not good or bad. The main consideration is where the bearing is used and the environmental factors of the bearing need to be considered. The structure of the sealing ring is different, the material is different, and the friction coefficient is different.
Single Row Deep Groove Ball Bearings are widely used in household appliances, toys, electric power tools, car motors and other fields. With optimal design, high reliability heat treatment, precision manufacturing processes and high-grade grease, these products perform better on reliability, vibration and noise levels than standard products making them more suitable for electric motor applications. These products can also be applied to most gearbox applications as well.
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 group of steel balls and a group of cages. There are two types of deep groove ball bearing, single row and double row, deep groove ball structure is also divided into sealed and open two kinds of structure, open refers to the bearing without sealing structure, sealing type deep groove ball is divided into dust seal and oil seal. The dust proof sealing cover is made of steel plate stamping, which only prevents dust from entering the bearing raceway. The oil-proof type is contact oil seal, which can effectively prevent the grease spillover in the bearing.
