6210 Angular Contact Ball Bearings 50x90x20 Precision Machining

6210 Deep-Groove Ball Bearings (50x90x20mm) - Motors/Equipment, High Load & Durable

I. Product Overview

The 6210 bearing is a vital member of the deep - groove ball bearing family, renowned for its robust performance and wide - ranging applicability. Meticulously engineered, it serves as a key component in numerous industrial, commercial, and even some consumer - oriented mechanical systems. By integrating traditional engineering wisdom with modern manufacturing advancements, the 6210 bearing ensures stable operation and an extended service life, making it a trusted choice in various operational environments.

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 6210 bearing. Chrome - steel offers excellent hardness, enabling 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 6210 bearing are also crafted from 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 6210 bearing begins with precision machining of the inner and outer rings. Advanced computer - numerical - control (CNC) machining techniques are employed 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 6210 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 made of steel or nylon, is then assembled around the balls to ensure their 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 6210 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

Industrial Machinery

1. Large - Sized Motors: The 6210 bearing is commonly used in large - sized electric motors, such as those found in industrial pumps, fans, and compressors. In these motors, the bearing supports the rotating shaft, enabling smooth and efficient power transfer. The bearing's ability to handle both radial and axial loads is crucial, as industrial motors often experience forces in multiple directions during operation. For example, in a large industrial fan motor, the 6210 bearing helps ensure that the fan blades rotate smoothly, while also absorbing any axial forces generated by the motor's operation.

2. Machine Tools: In machine tools such as lathes, milling machines, and grinders, the 6210 bearing plays a vital role. It is used in the spindle assemblies, where it supports the rotating spindle and ensures precise and smooth rotation. The high precision and load - bearing capacity of the 6210 bearing are essential for achieving accurate machining results. Whether in a lathe cutting metal or a grinder shaping a workpiece, the bearing's performance directly impacts the quality of the finished product.

Heavy - Duty Equipment

1. Construction Machinery: In construction machinery like excavators, loaders, and bulldozers, the 6210 bearing is used in various components. For instance, it can be found in the hydraulic pumps and motors that power the machinery's movements. The bearing's ability to withstand heavy loads and harsh operating conditions, such as dust, vibration, and temperature variations, makes it suitable for these applications. It ensures the reliable operation of the hydraulic systems, which are critical for the performance of the construction machinery.

2. Agricultural Equipment: In agricultural equipment such as tractors, combines, and harvesters, the 6210 bearing is used in components like the transmission systems and wheel hubs. In the transmission system, the bearing supports the rotating shafts, facilitating smooth gear shifting and power transfer. In the wheel hubs, it helps ensure that the wheels rotate freely, providing a stable and efficient ride over rough terrain. The bearing's durability and load - bearing capacity are essential for withstanding the demanding conditions of agricultural operations.

Transportation

1. Automotive Components: In automobiles, the 6210 bearing can be used in various components, such as the alternators, water pumps, and transmission systems. In an alternator, the bearing supports the rotating shaft, allowing it to generate electricity efficiently. In a water pump, it helps the impeller rotate smoothly, ensuring proper coolant circulation. In the transmission system, the bearing supports the gears and shafts, facilitating smooth gear changes. The 6210 bearing's reliability and performance contribute to the overall efficiency and durability of the vehicle.

2. Railway Applications: In railway systems, the 6210 bearing is used in components like the traction motors and bogie assemblies. In traction motors, it supports the rotating shaft, enabling the motor to drive the train's wheels. In bogie assemblies, the bearing helps ensure smooth rotation of the wheelsets, providing a stable and comfortable ride. The bearing's ability to handle heavy loads and high speeds makes it suitable for railway applications, where safety and reliability are of utmost importance.

V. Product Advantages

1. High Load - Bearing Capacity: The 6210 bearing is designed to handle substantial radial and axial loads, making it suitable for heavy - duty applications. Its robust construction and high - quality materials enable it to withstand the significant forces encountered in industrial machinery, construction equipment, and transportation systems. This high load - bearing capacity ensures the reliable operation of the machinery, reducing the risk of unexpected breakdowns and costly downtime.

2. Smooth and Quiet Operation: Precision machining and careful assembly result in a 6210 bearing that operates smoothly and quietly. The smooth rotation of the bearing reduces vibration and noise, which is beneficial for both the comfort of the operators and the overall efficiency of the machinery. Reduced vibration also helps extend the service life of other components in the mechanical system by minimizing the stress placed on them. In applications where quiet operation is crucial, such as in automotive and railway systems, the 6210 bearing's performance is highly advantageous.

3. Long Service Life: The use of high - quality bearing steel for the rings and balls, combined with strict quality control during manufacturing, contributes to the 6210 bearing's long service life. It can withstand continuous operation and varying loads, ensuring durability even in demanding environments. 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, construction, and transportation.

4. Cost - Effective Solution: Despite its high - performance capabilities, the 6210 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 allows customers to select the most suitable option for their specific needs, without over - investing in a bearing that may be more than required.

5. Easy Installation and Maintenance: The 6210 bearing is designed for easy installation and maintenance. Its standard dimensions and simple design make it compatible with a wide range of mechanical systems. 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 specific application requirements, such as high - speed operation or extreme temperatures.