6304-ZZ Deep Groove Ball Bearing High Speed Low Noise Long Lifespan

6304-ZZ Deep Groove Ball Bearing: Low Noise, High Speed & Long Lifespan

I. Product Overview​

As a key basic component in the field of mechanical transmission, the 6304-ZZ deep groove ball bearing plays a pivotal role in various mechanical equipment with its classic and mature structural design. With excellent comprehensive performance, it can provide solid support for the stable and efficient operation of equipment. This bearing is capable of bearing both radial loads and a certain degree of axial loads, and can exhibit outstanding performance in many working conditions with strict requirements on operational stability and accuracy. Its application range is extremely wide, covering multiple industries such as motors, water pumps, machine tools, household appliances, and small machinery, and has become one of the core components ensuring the normal operation of key equipment parts and the precise transmission of power.​

II. Structural Design​

1. Precise Cooperation between Balls and Raceways: The 6304-ZZ deep groove ball bearing uses high-precision steel balls as rolling elements inside. These steel balls, after precision grinding, have a smooth surface and extremely high dimensional accuracy, enabling them to roll smoothly in the deep groove raceways of the inner and outer rings. The design depth and radian of the raceways have been carefully optimized, so that the contact area between the steel balls and the raceways during rolling is reasonable, which can not only effectively disperse the borne load but also reduce friction loss, ensuring that the bearing maintains a low noise and vibration level during operation. When the equipment is subjected to radial or axial forces during operation, the steel balls will flexibly adjust their positions in the raceways, and evenly transmit the force to the inner and outer rings through multi-point contact, thereby ensuring the stable operation of the bearing as a whole.​

2. Sealing Structure Design: The suffix "ZZ" of this bearing model indicates that it adopts a sealing structure with double-sided dust covers. The dust covers are usually made of high-quality thin metal sheets by stamping, and are tightly installed on both sides of the bearing after fine processing and assembly. This sealing structure can effectively block foreign objects such as dust and impurities from entering the inside of the bearing, avoiding wear and pollution to the steel balls and raceways, and greatly extending the service life of the bearing. At the same time, during the assembly process, the inside of the bearing has been pre-filled with an appropriate amount of high-performance grease. Under the protection of the dust covers, this grease can continuously provide good lubrication for the steel balls and raceways, making the bearing not need frequent addition of lubricants during operation, thus reducing the maintenance cost and workload of the equipment.​

III. Dimensional Specifications​

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IV. Performance Advantages​

1. Good Bearing Capacity: Although deep groove ball bearings are mainly designed to bear radial loads, the 6304-ZZ model, with its reasonable structural design and high-quality material selection, performs excellently in bearing radial loads. At the same time, under certain conditions, it can also cope with a certain degree of axial load. For example, in the application of motor rotor support, it can stably bear the radial electromagnetic force generated during motor operation and the axial force caused by factors such as rotor weight, ensuring the stable and high-speed rotation of the motor rotor and guaranteeing the efficient and reliable operation of the motor.​

2. Low Friction and High-Speed Performance: The friction coefficient of deep groove ball bearings itself is extremely small. The 6304-ZZ model further reduces the friction coefficient through high-precision processing and special heat treatment on the surfaces of the steel balls and raceways. This makes the bearing generate less heat and have low energy loss during operation, and can adapt to higher speed requirements. In some equipment with strict speed requirements, such as high-speed fans, the bearing can operate stably to achieve efficient gas transmission, and with its low friction characteristic, it reduces energy consumption and improves the energy utilization efficiency of the equipment.​

3. Excellent Operational Stability: The precision manufacturing process ensures the fitting accuracy between various parts of the bearing, making the trajectory of the steel balls rolling in the raceways stable, thereby effectively reducing the generation of vibration and noise. The sealing structure of the double-sided dust covers not only blocks the entry of foreign objects but also enhances the structural rigidity of the bearing to a certain extent, further improving the operational stability. In applications such as motors of household appliances, its stable operational performance makes the appliances have extremely low noise during operation, providing users with a quiet and comfortable use environment.​

V. Application Fields​

1. Motor Industry: Widely used in various motors, such as asynchronous motors and synchronous motors. As a supporting component for motor rotors, the 6304-ZZ deep groove ball bearing can ensure that the motor rotor remains stable during high-speed rotation, reduce vibration and noise, improve the operating efficiency and reliability of the motor, and extend the service life of the motor. It can be found in both large industrial motors and small motors in household appliances.​

2. Water Pump Field: In the impeller shaft support part of water pumps, this bearing plays a key role. It can bear the radial force generated by the impeller during the pumping process of the water pump and the axial force caused by factors such as water flow pressure, ensuring the stable rotation of the water pump impeller and realizing efficient pumping operations. Whether it is water pumps for agricultural irrigation or various water pumps in industrial production, the 6304-ZZ deep groove ball bearing has become an ideal choice due to its reliable performance.​

3. Machine Tool Industry: For some auxiliary transmission components of machine tools, such as lead screw supports and worktable transmissions, the 6304-ZZ deep groove ball bearing can meet their requirements for accuracy and stability. It can effectively reduce vibration and deviation during transmission, ensure the relative position accuracy between the tool and the workpiece during the machining process of the machine tool, thereby improving the machining quality of parts and meeting the needs of precision machining.​

4. Household Appliances Field: In household appliances, such as motors of washing machines and fans, this bearing is widely used due to its advantages of low noise, long service life, and maintenance-free. It ensures the quiet and stable operation of the appliances during use, improves the user experience, and at the same time reduces the probability of appliance maintenance due to bearing failures, lowering after-sales costs.