Axial flow fan sintered fan fan centrifugal compressor TRT sliding bearing sliding bearing
Axial flow fan, sintering fan, ventilator, centrifugal compressor, TRT, sliding bearing
Role
Support journal: The primary function of the sliding bearing is to support the rotating journal to ensure that the shaft can rotate smoothly at a predetermined position. In engines, motors and other equipment, the shaft needs to rotate at high speed while maintaining a precise position. Sliding bearings provide reliable support for the shaft and ensure the normal operation of the equipment.bear load: Able to withstand radial load and axial load from the shaft. In some heavy machinery and equipment, such as mining machinery and metallurgical equipment, the shaft needs to bear huge weight and working load. Sliding bearings can effectively transfer these loads to the basic structure of the equipment to ensure the stability and reliability of the equipment.Reduce friction and wear: A lubricating film is formed between the shaft and the bearing seat to separate the journal from the bearing surface, which reduces direct contact and friction, reduces the degree of wear, and extends the service life of the shaft and the bearing.buffer and vibration reduction: It can play the role of buffer and vibration reduction. When the equipment is impacted or vibrated during operation, the sliding bearing can absorb part of the energy, reduce the impact of vibration on the equipment, and improve the stability and comfort of the equipment. In automobile engines, sliding bearings can reduce the transmission of engine vibration to the body and improve the driving experience.Advantage
Simple and compact structure: Compared with rolling bearings, sliding bearings have a simpler structure, a small number of parts, and do not require complicated structures such as rolling elements and cages. This makes the design and manufacture of the sliding bearing easier and relatively low cost. At the same time, its compact structure also makes it have obvious advantages in some occasions with high space requirements, and can achieve support and rotation functions in a space.Large bearing capacity: Since the bearing surface of the sliding bearing is continuous, it is not a point or line contact like the rolling bearing, so it can bear greater load. In the field of large-scale machinery and equipment, ship power system, sliding bearings can meet the requirements of high load and heavy load, and ensure the safe and stable operation of equipment.Smooth operation and low noise: During the operation of the sliding bearing, the relative movement between the journal and the bearing surface is continuous sliding, and there is no rolling and collision of the rolling elements, so the operation is more stable and the noise generated is also smaller. This makes the sliding bearing suitable for occasions with strict noise requirements, such as precision instruments and medical equipment.Good vibration absorption: The lubricating film of the sliding bearing has a certain degree of elasticity and viscosity, which can effectively absorb and disperse the vibration energy and reduce the impact of vibration on the equipment. This is of great significance to improve the reliability and service life of the equipment, as well as to ensure the processing accuracy and quality of the product.Adapt to harsh environments: It can work normally in some harsh working environments, such as high temperature, high speed, high humidity, strong corrosion and other environments. By selecting the appropriate materials and lubrication methods, sliding bearings can maintain good performance in these special environments, and have strong adaptability and reliability.I. Functions
Supporting the Journal
Ensures smooth rotation of the shaft in its designated position, critical for high-speed equipment like engines and motors.
Provides precise axial positioning, preventing misalignment and failure.
Load-Bearing Capacity
Withstands both radial loads (perpendicular to the shaft) and axial loads (along the shaft), making it ideal for heavy-duty applications such as mining and metallurgical machinery.
Distributes loads to the machine's foundation, enhancing stability and reliability.
Reducing Friction and Wear
A lubricating film (e.g., oil film) separates the journal from the bearing surface, minimizing direct contact and extending component lifespan.
Commonly used in industrial equipment requiring long-term operation.
Damping and Vibration Absorption
Absorbs shock energy and reduces vibration transmission. For example, plain bearings in automotive engines decrease cabin vibrations, improving ride comfort.
II. Advantages
Simple and Compact Design
No rolling elements or cages, reducing manufacturing costs and fitting space-constrained applications (e.g., small motors, precision instruments).
High Load Capacity
Continuous surface contact (vs. point/line contact in rolling bearings) makes it suitable for heavy-load scenarios like ship propulsion and industrial machinery.
Smooth and Quiet Operation
Sliding friction generates less noise than rolling-element bearings, ideal for medical equipment and precision devices requiring silent operation.
Excellent Vibration Damping
The elastic properties of the lubricating film dissipate vibration energy, enhancing reliability and machining accuracy (e.g., machine tool spindles).
Adaptability to Harsh Environments
Custom materials (e.g., ceramics, self-lubricating composites) and lubrication methods (e.g., solid lubrication, oil mist) enable performance in extreme conditions (e.g., high temperature, corrosion, humidity), such as in chemical pumps and turbines.
Application Examples
| Scenario | Key Advantage of Plain Bearings |
|---|
| Automotive Engines | Vibration damping for smoother rides |
| Mining Crushers | High load capacity for heavy impacts |
| Medical CT Scanners | Low-noise operation for quiet environments |
| Marine Propulsion | Corrosion resistance for long-term reliability |
Conclusion
Plain bearings, with their simplified design, superior load-bearing and vibration-damping capabilities, play a vital role in industries such as manufacturing, transportation, and precision engineering. Their flexibility and adaptability make them indispensable in high-load, low-noise, and harsh-environment applications.
| item | value |
| voltage | 380 V |
| rated power | 0.75kw |
| core components | Bearing |
| warranty | 1 Year |
| place of origin | |
| table travel (x) (mm) | 1000 |
| number of axes | 4 |
| video outgoing-inspection | Provided |
| machinery test report | Provided |
| brand name | LJ |
| key selling points | High Productivity |
1. who are we? We are based in Shaanxi,, start from 2011,sell to Africa(30.00%),North America(25.00%),Southeast Asia(20.00%),Eastern Europe(10.00%),Eastern Asia(10.00%),Domestic Market(5.00%). There are total about - people in our office. 2. how can we guarantee quality? Always a pre-production sample before mass production; Always final Inspection before shipment; 3.what can you buy from us? Blades,Hydraulic Motor,Industrial fans,Centrifugal Compressor,Axial Compressor 4. why should you buy from us not from other suppliers? - 5. what services can we provide? Accepted Delivery Terms: -; Accepted Payment Currency: -; Accepted Payment Type: -; Language Spoken
