DOES ROTARY UNION HAS BEARING IN IT?

Yes, many rotary union hydraulic do include bearings as an integral part of their design.The rotary union hydraulic is mainly composed of bearing, seal, bearing cover, flange, gear, gear shaft and so on.

1. Bearing: is the core part of the rotary union hydraulic, which is responsible for bearing the rotation of the rotary union hydraulic.
2. Sealing: used to maintain the sealing of the rotary union hydraulic and prevent external impurities such as water and dust from entering the inside of the rotary union hydraulic and affecting its normal work.
3. Bearing cover: Metal cover located at both ends of the bearing, the main function is to protect the bearing from external impact.
4. Flange: Connect the rotary union hydraulic to other machines and equipment through the flange.
5. Gear: responsible for transmitting power to make the rotary union hydraulic rotate.
6. Gear shaft: Bind the gear to the bearing.

Second, the rotary union hydraulic working principle
The working principle of the rotary union hydraulic is: the rotary union hydraulic is connected with other mechanical equipment through the bearing, and the power is transmitted through the gear shaft and the gear to make the rotary union hydraulic rotate. At the same time, the seal inside the rotary union hydraulic plays a sealing role to prevent foreign impurities from affecting the service life of the rotary union hydraulic.

Bearings in a rotary union hydraulic serve several important functions:
1. Supporting the Rotating Element: Bearings support the rotating part of the union, allowing it to turn smoothly and maintain its position relative to the stationary part.
2. Reducing Friction: They reduce friction between the rotating and stationary parts, which helps to minimize wear and tear and extend the life of the union.
3. Handling Loads: Bearings are designed to handle both radial (perpendicular to the axis of rotation) and axial (parallel to the axis of rotation) loads, depending on the specific application.
4. Maintaining Alignment: They help to keep the rotating and stationary parts aligned, ensuring that the seals remain in proper contact and preventing leaks.

Types of Bearings in rotary union hydraulic
– Ball Bearings: These are common in rotary union hydraulic due to their low friction and ability to handle both radial and axial loads. They are suitable for high-speed applications.
– Roller Bearings: These can handle higher loads compared to ball bearings and are often used in applications with heavy loads and moderate speeds.
– Thrust Bearings: These are specifically designed to handle axial loads and are used in applications where there is significant force along the axis of rotation.
– Sleeve Bearings (Journal Bearings)**: These are simpler in design and consist of a shaft rotating within a sleeve. They are often used in applications with lower rotational speeds and lighter loads.

Construction and Design
In a typical rotary union hydraulic, the bearings are housed within the body of the union, supporting the rotating element (such as a shaft or drum) that is connected to the rotating machinery. The bearings are usually sealed to prevent fluid from entering and to keep lubricant inside, ensuring smooth operation and longevity.

Maintenance and Care
– Lubrication: Proper lubrication is essential to ensure the bearings function correctly and last longer. Many rotary unions have built-in lubrication systems, but regular maintenance and inspection are still necessary.
– Sealing: The seals around the bearings must be maintained to prevent fluid leakage and contamination.
– Inspection: Regularly inspect the bearings for wear, damage, or signs of overheating. Replace worn or damaged bearings to avoid failure.

Conclusion
In summary, many rotary union hydraulic do indeed have bearings, and these bearings play a crucial role in the performance and reliability of the union. The type of bearing used depends on the specific application, including the load, speed, and environmental conditions. Proper maintenance and care are essential to ensure the long-term functionality of the rotary union hydraulic.