Long Lasting Deep Groove Ball Bearing 608zz 8mm X 22mm X 7mm Low Friction

Product Specification

608ZZ Deep Groove Ball Bearing: High Speed, Low Noise & Long-Lasting

I. Product Overview​

The 608ZZ deep groove ball bearing is an extremely common and widely used basic component in the field of mechanical transmission. As a member of the deep groove ball bearing family, with its mature and classic structural design, it plays a key role in various mechanical equipment, providing a solid guarantee for the stable operation of the equipment. This bearing can effectively bear radial loads and also has the ability to bear a certain amount of axial loads, performing excellently in working conditions with strict requirements on the stability and accuracy of equipment operation. Its application fields are extremely wide, covering multiple industries such as motors, small water pumps, office equipment, precision instruments, fitness equipment, and various small machinery, and it is an important component to ensure the accurate operation of key equipment parts and the efficient transmission of power.​

II. Structural Design​

1. Precise Cooperation between Balls and Raceways: The 608ZZ deep groove ball bearing uses high-precision steel balls as rolling elements inside. These steel balls are processed through precision grinding technology, with extremely smooth surfaces and high dimensional accuracy, enabling them to roll smoothly and stably in the deep groove raceways of the inner and outer rings. The depth and radian of the raceways are carefully optimized and designed, so that the contact area between the steel balls and the raceways remains in a reasonable state. This design can not only effectively disperse the load applied to the bearing during equipment operation but also significantly reduce the friction loss during rolling, thereby ensuring that the noise and vibration of the bearing remain at a low level during operation. When the equipment is subjected to radial or axial forces, the steel balls will flexibly adjust their positions in the raceways according to the force situation, and evenly transmit the external force to the inner and outer rings through multi-point contact, strongly ensuring the stable operation of the bearing as a whole.​

2. Sealing Structure Design: The "ZZ" in the model clearly indicates that the bearing adopts a double-sided metal dust cover sealing structure. The dust cover is made of high-quality thin metal sheets through a stamping process, and after fine processing, it is tightly installed on both sides of the bearing. This sealing structure can efficiently block various foreign objects such as dust and impurities from entering the inside of the bearing, effectively avoiding wear and pollution of the steel balls and raceways caused by foreign object intrusion, thus greatly extending the service life of the bearing. At the same time, before leaving the factory, the inside of the bearing has been pre-filled with an appropriate amount of high-performance grease. Under the tight protection of the dust cover, this grease can continuously provide good lubrication for the steel balls and raceways, reducing the maintenance cost and workload during equipment operation.​

III. Dimensional Specifications​

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IV. Performance Advantages​

1. Good Bearing Capacity: Although the 608ZZ deep groove ball bearing is mainly designed to bear radial loads, relying on its reasonable structural layout and the selection of high-quality materials, it shows excellent performance in radial load-bearing. At the same time, under certain conditions, it can also better cope with a certain amount of axial load. For example, in the application scenario of rotor support of small motors, it can stably bear the radial electromagnetic force generated during motor operation and the axial force caused by the rotor's own weight, ensuring that the motor rotor can achieve smooth and high-speed rotation, thereby ensuring the efficient and reliable operation of the motor.​

2. Low Friction and High-Speed Performance: Deep groove ball bearings themselves have a small friction coefficient, and the 608ZZ model further reduces the friction coefficient on this basis through high-precision processing of steel balls and raceways and special heat treatment technology. This makes the bearing generate significantly less heat during operation, significantly reduce energy consumption, and can well adapt to the working requirements of higher rotational speeds. In equipment such as small high-speed fans, the bearing can operate stably and efficiently realize the gas transmission function. Its low friction characteristic not only helps to reduce the energy consumption of the equipment but also improves the energy utilization efficiency of the equipment.​

3. Excellent Operational Stability: The precision manufacturing process ensures that the various components of the 608ZZ deep groove ball bearing have extremely high matching accuracy, so that the rolling trajectory of the steel balls in the raceways always remains stable, thereby effectively reducing the generation of vibration and noise. The sealing structure of the double-sided dust cover can not only block the entry of foreign objects but also enhance the structural rigidity of the bearing to a certain extent, further improving its operational stability. In the motor application of small household appliances (such as electric shavers, small massagers), its stable operating performance can significantly reduce the noise during equipment operation, creating a quiet and comfortable use environment for users.​

V. Application Fields​

1. Motor Industry: Widely used in various small motors, such as micro DC motors, small AC asynchronous motors, etc. As a supporting component of the motor rotor, the 608ZZ deep groove ball bearing can ensure the stability of the rotor during high-speed rotation, effectively reduce vibration and noise, improve the operating efficiency and reliability of the motor, and extend the service life of the motor. It can play an important role both in tiny motors used in electronic equipment and small auxiliary motors in household appliances.​

2. Small Water Pump Field: In the impeller shaft support part of small water pumps, this bearing plays a key role. It can bear the radial force generated during the rotation of the impeller and the axial force caused by water flow pressure, ensuring the smooth rotation of the impeller and realizing efficient pumping operations. It is commonly used in household small self-priming pumps, aquarium circulation water pumps and other equipment, and has become an ideal choice due to its reliable performance.​

3. Office Equipment and Precision Instruments: In office equipment (such as the paper feeding mechanism of printers, the transmission components of copiers) and precision instruments (such as the fine-tuning device of electron microscopes, the rotating components of analytical balances), the 608ZZ deep groove ball bearing, with its characteristics of high precision, low noise, and stable operation, can meet the strict requirements of these equipment for component precision and stability, ensuring the accurate operation of the equipment and guaranteeing work quality.​

4. Fitness Equipment and Small Machinery: This bearing is widely used in fitness equipment (such as the flywheel shaft of small exercise bikes, the rotating parts of hand-held massagers) and various small machinery (such as the transmission device of small woodworking machinery, the stirring shaft of small food processing machinery). Its characteristics of long service life and low maintenance can adapt to the working conditions of these equipment that are used for a long time and frequently, reduce the incidence of equipment failures, and lower maintenance costs.