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Comprehensive Analysis: Performance Comparison Of Oilite Bushings And Traditional Bushings
Introduction
As a component of the mechanical transmission device, the performance of the bushing directly affects the reliability of the entire machine. With the continuous advancement of technology, Oilite Bushings have gradually replaced traditional bronze bushings and plastic bushings with their unique advantages, becoming the first choice of more and more brands.
The built-in porous and oily structure of Oilite Bushings gives excellent self-lubricating properties and can work stably for a long time without external lubrication, greatly reducing daily maintenance costs.
At the same time, the excellent wear resistance of Oilite Bushings also greatly extends its service life and significantly reduces the cost of regular replacement parts. Traditional bronze and plastic bushings need to be replenished with grease regularly, which requires a lot of maintenance work and the effect cannot be guaranteed.
Moreover, Oilite Bushings have a simple and compact structure, enabling thin-wall installation without gaps, saving space and reducing processing and manufacturing costs. Therefore, it is also widely used in various industries.
Material Composition And Types Of Oilite Bushings
Oilite bushings are refined through powder metallurgy technology. They are mainly porous structural materials made by mixing various metal powders such as copper powder, iron powder, lead powder, etc. The lubricating oil injected into the pores can penetrate the shaft and A continuous lubricating film is formed between the bushings, effectively reducing friction and wear. Different metal powder combinations can give different heat resistance, corrosion resistance and other properties.
Types Of Oilite Bushings
There are many types of Oilite Bushings, each offering unique properties and benefits. Here are the five most common types:
- Brass Oilite Bushings: Brass is the most common base material in Oilite Bushings. Brass itself has excellent corrosion resistance and strength.
- Copper-lead Oilite Bushings: Copper-lead Oilite Bushings are formed by adding a certain amount of lead to the brass matrix. The presence of lead can further improve the self-lubricating and anti-wear capabilities of the bushing.
- Stainless steel Oilite Bushings: Oilite Bushings using stainless steel as the base have both excellent corrosion resistance and high strength, and are suitable for applications under harsh environmental conditions.
- Iron-based Oilite Bushings: This is a non-copper alloy Oilite Bushings prepared by iron powder metallurgy process. It has good wear resistance and adaptability to humid environment.
- Aluminum-based Oilite Bushings: Made of aluminum material, they are lightweight and have good heat resistance. They are commonly used in aerospace and high-speed operation applications. However, aluminum-based Oilite Bushings have lower hardness and strength and require higher maintenance.
Compared To Traditional Bushings
Compared with traditional bronze bushings and plastic bushings, Oilite Bushings rely on their unique porous and oily structure to provide continuous lubrication for the moving surfaces with a large amount of built-in lubricating oil. This allows Oilite Bushings to have an extremely low wear rate, and at the same time avoids jamming, premature wear and other failures caused by insufficient lubrication.
From the perspective of maintenance costs, due to the built-in self-lubricating structure, Oilite Bushings basically do not need to replenish any lubricating medium after installation, which greatly reduces the maintenance workload and repair costs. Bronze bushings and plastic bushings require regular replenishing of grease, which not only increases labor and material costs, but improper operation may also cause equipment damage.
Performance stability is also a highlight of Oilite Bushings. Excellent self-lubricating properties allow Oilite Bushings to operate with extremely low friction coefficients, low noise levels, and smoother and more orderly movements, significantly extending the service life of key components such as bearings.
Ordinary Oilite Bushings have good heat resistance, dustproof and waterproof properties, and can cope with harsh working conditions; while Oilite Bushings made of stainless steel or other special materials can further enhance corrosion resistance, high temperature resistance and other properties. In comparison, bronze bushings and plastic bushings are limited by environmental factors.
Working Principle And Maintenance Of Oilite Bushings
During the manufacturing process of Oilite Bushings, metal powder is pressed into porous blocks through a powder metallurgy process, and then an appropriate amount of high-quality lubricating oil is injected.
During the operation of the bushing, the lubricating oil in the internal oil reservoir is slowly transported to the contact surface between the metal substrate and the journal through capillary action, where a thin and uniform oil film is formed.
This oil film provides continuous lubrication for the inner and outer surfaces of the bushing, thereby achieving a self-lubricating effect that allows the bushing to operate smoothly for a long time without the need for additional lubricating media. The lower friction coefficient and wear rate of Oilite Bushings comes from this unique self-lubricating mechanism.
In addition to self-lubricating properties, Oilite Bushings also provide wear resistance and sealing properties.
The porous structure itself made of pressed metal powder has high strength and hardness. The lubrication effect of the internal lubricating oil film also minimizes the wear of the metal surface. This enables Oilite Bushings to maintain dimensional accuracy for a long time and greatly extends its service life.
At the same time, the cavity structure also enables Oilite Bushings to have a certain “built-in sealing ring” function, which largely prevents the erosion of dust, moisture and other pollutants.
Compared with traditional bronze bushings or plastic bushings, Oilite Bushings require basically no maintenance and only need to ensure that normal operating parameters are met during operation.
Common Industries And Applications Of Oilite Bushings
Oilite Bushings’ unique self-lubricating properties, wear resistance and environmental protection and energy saving advantages are increasingly used in various types of mechanical equipment;
- In the automotive industry, whetstone bushings are widely used in many moving parts such as engines, gearboxes, and steering systems.
- In the aerospace field, for aerospace engines, landing gear, control surface drive systems and other components
- In the field of industrial machinery manufacturing, it can be metallurgical equipment, mining machinery, injection molding machines, textile machinery or lifting and transportation equipment, etc.
- In addition, it is also widely used in other precision instruments and office automation equipment, agricultural machinery, ship machinery, power equipment and other industries.
The Difference Between Self-lubricating Bearings And Oilite Bushings
Self-lubricating bearings are essentially traditional rolling or sliding bearings, except that a self-lubricating coating or self-lubricating material is applied to the bearing surface. Their basic structure is no different from traditional bearings.
Oilite Bushings are a brand new form of bearing/bushing, made entirely of porous metal materials (such as brass, iron base, etc.), into which a large amount of lubricating oil is injected. Grease can automatically adjust the oil supply amount according to working conditions to maintain the lubrication state of the bearing surface, thereby achieving a true self-lubricating function. There is no need to leave a lubrication gap in advance, the structure is compact, and thin-wall installation without gaps can be achieved.
Due to the characteristics of the self-lubricating coating, self-lubricating bearings are more suitable for applications with medium and low speeds, low loads, and without strict protection, and generally can only function on the bearing surface. Due to the internal oil storage structure, Oilite Bushings have higher self-lubricating capabilities and can be used in a wider range of high-speed and high-load scenarios.
At the same time, compared to solid lubricants, liquid lubricants can continue to flow slowly and moisturize the entire moving surface. Therefore, Oilite Bushings are more suitable for use in harsh environments that have higher requirements for dustproof and waterproofing.
Since the design of Oilite Bushings is relatively simple, it mainly relies on the physical and chemical properties of its material itself to achieve its self-lubricating function. Therefore, Oilite Bushings can release lubricating oil for a long time through the pore structure of the material, providing a stable lubrication effect. Self-lubricating bearings come in a variety of designs.
Generally speaking, both are typical bearings. Self-lubricating bearings and Oilite Bushings also have unique working principles and structural designs to adapt to different working conditions.
Why Choose FHD Oilite Bushings
Product quality is the core philosophy of FHD Bearings. We strictly follow the ISO 9001 quality management system and implement strict quality control in every aspect from raw material procurement to production and manufacturing to ensure that every product can fully meet customer requirements. At the same time, we have also passed advanced quality management system certifications such as IATF 16949, integrating quality awareness throughout the entire product life cycle.
In addition to excellent quality, FHD Bearings is also proud of its technological research and development capabilities for continuous innovation and change. We have a senior R&D team in the industry, which can tailor-make and optimize the material formula, porosity, size and shape of Oilite Bushings products for special application scenarios and individual customer needs, providing customers with products that truly meet their actual needs. Exclusive solution.
Therefore, as a Chinese OEM/ODM manufacturer focusing on Oilite Bushings products, we deeply understand the importance of providing quality products and services. FHD Bearings is committed to providing customers with localized rapid response services and a convenient one-stop purchasing experience. With more than 20 years of production and sales experience, choosing FHD Bearings not only means choosing our products, but also choosing a reliable partner. We meet the growing needs of global customers by continuing to provide high-quality products, advancing technological innovation, providing flexible customized solutions, and comprehensive global support services.
FHD bearings is a trusted partner to the industrial industry, providing high-quality bearings of all types. If you need one, contact the experts at FHD bearings. Contact us today to learn more about our products and services.
References
- 1.Some more detailed information about“ Oilite Bushings”
- 2. About the origin of “Oilite Bushings” from Bowman ;
- 3. About the Differences between ”Oilite Bushings“ vs. Bronze Bushings vs. Plastic Bushings from Emerson Bearing .
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