6204 Ball Bearing 20x47x14 Customized Ball Bearings Deep Groove

6204 Deep-Groove Ball Bearings (20x47x14mm) - Motors/Machinery, Durable & Versatile

I. Product Overview

The 6204 bearing is a fundamental yet highly efficient mechanical component that belongs to the deep - groove ball bearing family. Engineered with precision, it serves as a crucial element in a wide array of industrial and consumer - based applications. Its design is the result of a combination of time - tested engineering principles and modern manufacturing techniques, ensuring reliable performance and a long service life across various mechanical systems.

II. Core Technical Parameters

III. Materials and Craftsmanship

Material Selection

1. Ring Material: High - quality bearing steel, often of the 52100 chrome - steel variety, is used for the inner and outer rings of the 6204 bearing. Chrome - steel offers excellent hardness, which enables the rings to maintain their shape under high - stress conditions. Its high wear resistance reduces the risk of premature failure due to friction, ensuring a long service life for the bearing. Additionally, the material has good fatigue strength, allowing it to withstand the repeated loading and unloading cycles that occur during normal operation.

2. Ball Material: The balls in the 6204 bearing are also made of high - quality bearing steel, typically 52100 chrome - steel. These balls are manufactured to extremely tight tolerances in terms of roundness and surface finish. The smooth surface of the balls minimizes friction as they roll within the bearing, enhancing rotational efficiency. The high - quality chrome - steel material provides the necessary strength to withstand the forces exerted on them during operation.

Craftsmanship Highlights

1. Precision Machining: The manufacturing process of the 6204 bearing begins with precision machining of the inner and outer rings. Advanced computer - numerical - control (CNC) machining techniques are utilized to achieve the exact dimensional tolerances required. The bore, outer diameter, and width are machined with extreme precision to ensure proper fitment within the machinery. Any deviation from the specified tolerances could lead to increased vibration, reduced efficiency, and premature bearing failure.

2. Assembly Process: The assembly of the 6204 bearing is a highly precise operation. The balls are carefully installed into the bearing, with strict attention paid to their spacing and alignment. The cage, whether it is steel or nylon, is then assembled around the balls to ensure even distribution and smooth movement during rotation. In some cases, the balls may be pre - loaded to a specific force to optimize performance and reduce play, further enhancing the bearing's stability and load - handling capabilities.

3. Quality Control: Each 6204 bearing undergoes rigorous quality control procedures. Dimensional accuracy is checked using high - precision measuring instruments, such as coordinate measuring machines (CMMs). The surface finish of the rings and balls is inspected to ensure that it meets the required standards for reducing friction and wear. Material integrity is verified through techniques like hardness testing and non - destructive testing (NDT), such as magnetic particle inspection or ultrasonic testing. Only bearings that pass all these quality checks are released for use, ensuring that customers receive a reliable and high - performing product.

IV. Application Scenarios

Electric Motors

1. Small - to - Medium - Sized Motors: The 6204 bearing is commonly used in small - to - medium - sized electric motors. In these motors, the bearing supports the rotating shaft, allowing for smooth and efficient power transfer. The bearing's ability to handle both radial and axial loads is crucial, as electric motors often experience forces in multiple directions during operation. For example, in a household fan motor, the 6204 bearing helps to ensure that the fan blades rotate smoothly, while also absorbing any axial forces generated by the motor's operation.

2. Industrial Motors: In industrial settings, the 6204 bearing can be found in motors used in conveyor systems, pumps, and compressors. In conveyor systems, the bearing supports the shafts of the pulleys, enabling the smooth movement of the conveyor belts. In pumps and compressors, the bearing helps to maintain the alignment of the rotating components, ensuring efficient fluid or gas transfer. The high load - bearing capacity and reliability of the 6204 bearing make it suitable for these industrial applications, where continuous operation and high performance are required.

Machinery and Equipment

1. Office Equipment: In office equipment such as printers, scanners, and photocopiers, the 6204 bearing plays a vital role. In printers, for instance, the bearing is used in the paper - feed mechanism to ensure smooth movement of the paper. The low - friction and high - precision characteristics of the 6204 bearing are essential for the accurate and reliable operation of these office devices. The quiet operation of the bearing is also beneficial in an office environment, where noise levels need to be kept to a minimum.

2. Medical Equipment: Some medical equipment, such as diagnostic imaging devices and laboratory centrifuges, may use 6204 bearings. In a centrifuge, the bearing supports the spinning rotor, which needs to rotate at high speeds with precision. The high - quality materials and precise manufacturing of the 6204 bearing ensure its reliability in these critical medical applications, where accuracy and safety are of utmost importance.

3. Power Tools: In power tools like drills, grinders, and circular saws, the 6204 bearing is used to support the rotating shafts of the cutting or grinding components. The bearing's ability to handle high - speed rotations and the shock loads generated during power - tool operation makes it an ideal choice. For example, in a handheld drill, the 6204 bearing helps to ensure that the drill bit rotates smoothly and accurately, allowing for efficient drilling in various materials.

Transportation

1. Bicycle Hubs: The 6204 bearing is a common choice for bicycle hubs. In the front and rear hubs of a bicycle, the bearing enables the smooth rotation of the wheels. The lightweight design of the bearing, along with its ability to handle the dynamic loads experienced during cycling, makes it suitable for this application. The low - friction coefficient of the 6204 bearing also helps to reduce energy loss, making cycling more efficient.

2. Motorcycle Components: In motorcycles, the 6204 bearing can be used in various components, such as the transmission system and the wheel hubs. In the transmission, the bearing supports the rotating shafts, facilitating smooth gear shifting. In the wheel hubs, the bearing helps to ensure that the wheels rotate freely, providing a stable and comfortable ride. The high - load - bearing capacity and durability of the 6204 bearing are important in motorcycle applications, where the components are subjected to high speeds and rough road conditions.

V. Product Advantages

1. Versatility: The 6204 bearing's ability to handle both radial and axial loads, along with its wide range of applications, makes it an extremely versatile component. Whether in electric motors, machinery, or transportation equipment, it can adapt to different operating conditions and mechanical requirements. This versatility reduces the need for multiple specialized bearings in a given system, simplifying design and maintenance processes.

2. Smooth Operation: Precision machining and careful assembly result in a 6204 bearing that operates smoothly. The smooth rotation of the bearing reduces vibration and noise, which is not only beneficial for the comfort of the operators but also for the overall efficiency of the machinery. Reduced vibration can also extend the service life of other components in the mechanical system, as it minimizes the stress placed on them. In applications where quiet operation is crucial, such as in office equipment or medical devices, the smooth - running characteristics of the 6204 bearing are highly advantageous.

3. Long Service Life: The use of high - quality bearing steel for the rings and balls, along with strict quality control during manufacturing, contribute to the 6204 bearing's long service life. In applications where the bearing is subjected to continuous operation and varying loads, its durability is a significant advantage. A long service life means less frequent replacements, which in turn reduces maintenance costs and downtime for the machinery. This is particularly important in industries where uninterrupted operation is critical, such as manufacturing and transportation.

4. Cost - Effective: Despite its high - performance capabilities, the 6204 bearing offers a cost - effective solution for many applications. Its widespread availability and relatively simple design result in competitive pricing. Additionally, its long service life and low maintenance requirements further reduce the overall cost of ownership. The ability to choose from different cage materials and precision grades also allows customers to select the most suitable option for their specific needs, without having to over - invest in a bearing that may be more than what is required.

5. Easy Installation and Maintenance: The 6204 bearing is designed for easy installation and maintenance. Its standard dimensions and simple design make it compatible with a wide range of mechanical systems. In addition, the availability of different sealing options and lubrication choices allows for customization based on the operating environment. Sealed bearings, for example, require less maintenance as they are protected from contaminants, while the choice of lubricant can be tailored to the specific requirements of the application, such as high - speed operation or extreme temperatures.