PTFE Bushes
PTFE Bushes
Say goodbye to the hassle of frequent lubrication maintenance. Our self-lubricating technology ensures smooth operation and reduces wear and tear, extending the lifespan of your equipment. Experience uninterrupted productivity and cost savings as you bid farewell to the need for messy lubricants and time-consuming upkeep.
Manufacturing on Demand
PTFE Bushes
Metal-polymer anti-friction Plain Bearings, and self-lubricating split bushings offer very good wear and low friction performance over a wide range of loads, speeds, and temperatures in dry running.
Offering Stainless Steel Bushes. Wrapped steel bushes are ideal for applications involving rotation and oscillation.
Manufacturing and Customization
PTFE bushes are typically manufactured through molding processes, such as compression molding, to achieve the desired shape and size. Manufacturers offer customization options, including variations in dimensions, filler materials, and additional features like grooves or lubrication pockets
Stainless Steel-Backed Corrosion-Resistant PTFE Bushings: A Game Changer for Industrial Applications, wall wrapped bushing
Stainless steel-backed corrosion-resistant DU bushings are revolutionizing the world of industrial applications. These bushings, also known as dry sliding bearings, offer unparalleled benefits in terms of durability, performance, and corrosion resistance. Engineered for demanding environments, they have become a preferred choice in various industries, such as automotive, aerospace, construction, and marine applications. In this article, we will explore the features, benefits, and applications of these innovative bushings.
PTFE (Polytetrafluoroethylene) bushes, also known by the brand name Teflon, are widely used in various industries due to their exceptional properties. These bushes are available in both metric and inch sizes and can be cylindrical or flanged. They are particularly suitable for high-speed and high-temperature applications due to their self-lubricating nature, low coefficient of friction, and excellent chemical and heat resistance
Metric and Inch Size PTFE Bushes
PTFE bushes are manufactured in a range of standard sizes, and they can also be custom-made to specific dimensions and shapes. The standard sizes are often listed in both metric (millimeters) and inch (fractions of an inch) measurements to cater to different engineering standards and requirements.
Composite dry sliding bearings, What is DU Bushing?
A DU bushing, also known as a plain bearing, dry bearing, or PTFE bushing, is a type of self-lubricating bearing. It is made from a composite material that typically consists of a metal backing bonded to a layer of PTFE-based (Polytetrafluoroethylene) material. Here are its key characteristics:
- Self-Lubricating: The PTFE layer provides a low coefficient of friction, allowing the bearing to operate without additional lubrication. This is particularly useful in applications where lubrication is difficult or undesirable.
- Metal Backing: The metal backing, often made of steel or bronze, provides structural integrity and improves load-carrying capacity.
- Durability and Maintenance: DU bushings are known for their durability and resistance to wear, which reduces the need for frequent maintenance or replacement.
- Wide Range of Applications: These bushings are used in various applications, including automotive systems, industrial machinery, and office equipment, where they provide smooth, reliable movement with minimal maintenance.
- Operating Conditions: They are suitable for both rotary and oscillating movements and can handle a wide range of temperatures and conditions.
DU bushings offer a cost-effective and reliable solution for many mechanical and industrial applications, thanks to their unique properties and self-lubricating design.
Features of Stainless Steel-Backed Corrosion-Resistant DU Bushings
- Stainless Steel Backing
The stainless steel backing of these DU bushings provides an excellent foundation for their remarkable strength and durability. Stainless steel is known for its high resistance to corrosion, making it an ideal material for use in harsh environments. This backing not only ensures a longer service life but also minimizes the risk of structural failure.
- PTFE-Based Sliding Layer
The sliding layer in these bushings is made from PTFE (polytetrafluoroethylene), a material well-known for its low friction coefficient and outstanding wear resistance. This layer allows the bushings to operate smoothly without the need for lubrication. The self-lubricating properties of PTFE significantly reduce maintenance costs and downtime, making these bushings an excellent choice for various applications.
- Robust Design
Stainless steel-backed corrosion-resistant DU bushings are designed to withstand high loads, both static and dynamic, and to function effectively under oscillating or rotational motion. Their robust design enables them to deliver consistent performance even in extreme conditions, such as high temperatures, heavy loads, or aggressive media.
Benefits of Stainless Steel-Backed Corrosion-Resistant DU Bushings
- Corrosion Resistance
One of the most significant advantages of these bushings is their exceptional corrosion resistance. The combination of stainless steel backing and PTFE-based sliding layer ensures that these bearings can withstand harsh environments, such as exposure to saltwater or corrosive chemicals.
- Low Maintenance
The self-lubricating properties of the PTFE sliding layer mean that these bushings require minimal maintenance. Their dry-running capabilities eliminate the need for lubrication, reducing maintenance costs and downtime, and making them environmentally friendly.
- High Load Capacity
Stainless steel-backed corrosion-resistant DU bushings can handle heavy loads and high stresses without compromising performance. This high load capacity makes them suitable for a wide range of applications, from automotive to heavy machinery.
- Versatility
These bushings are available in various sizes and shapes, making them adaptable to different requirements. Customized designs can also be developed to meet specific application needs.
Applications of Stainless Steel-Backed Corrosion-Resistant DU Bushings
- Automotive Industry
These bushings are widely used in the automotive industry for components such as suspension systems, steering systems, and transmission systems. Their low friction, high load capacity, and corrosion resistance make them ideal for these applications.
- Aerospace Industry
In the aerospace industry, stainless steel-backed corrosion-resistant DU bushings are used in landing gear systems, actuators, and control surfaces. Their lightweight design, combined with excellent performance under high loads, makes them a perfect fit for this industry.
- Marine Industry
These bushings are employed in various marine applications, such as rudder bearings, deck equipment, and winches. Their excellent corrosion resistance makes them well-suited for the harsh conditions encountered in the marine environment.
- Construction and Heavy Machinery
Stainless steel-backed corrosion-resistant DU bushings are also used in construction equipment and heavy machinery, such as excavators, cranes, and earthmoving equipment.
Stainless steel-backed corrosion-resistant bushing
Here is a sample size chart for DU bushes. The dimensions provided are in millimeters (mm) and represent the most common sizes. Custom sizes may also be available upon request.
Find Your Bushing Size
| DU Bush No. | Inner Diameter (mm) | Outer Diameter (mm) | Length (mm) |
|---|---|---|---|
| DU-1010 | 10 | 12 | 10 |
| DU-1215 | 12 | 14 | 15 |
| DU-1420 | 14 | 16 | 20 |
| DU-1625 | 16 | 18 | 25 |
| DU-1828 | 18 | 20 | 28 |
| DU-2030 | 20 | 23 | 30 |
| DU-2235 | 22 | 25 | 35 |
| DU-2438 | 24 | 27 | 38 |
| DU-2640 | 26 | 30 | 40 |
| DU-2845 | 28 | 32 | 45 |
| DU-3050 | 30 | 34 | 50 |
Please note that the sizes and dimensions provided in this table are for illustrative purposes only. Actual product sizes may vary, and manufacturers may offer additional or custom sizes based on specific requirements. Always consult the manufacturer’s product literature or contact them directly for the most accurate and up-to-date information on available sizes.
DU bushing sizes can vary significantly based on the application, and the demand for different sizes can be influenced by various factors such as industry trends, manufacturing processes, and the types of machinery being used.
However, some common metric sizes that might be frequently used in both Chinese and American markets include:
- DU-1010 (10 mm inner diameter, 12 mm outer diameter, 10 mm length)
- DU-1215 (12 mm inner diameter, 14 mm outer diameter, 15 mm length)
- DU-1625 (16 mm inner diameter, 18 mm outer diameter, 25 mm length)
- DU-2030 (20 mm inner diameter, 23 mm outer diameter, 30 mm length)
- DU-2438 (24 mm inner diameter, 27 mm outer diameter, 38 mm length)
Availability and Varieties
- Cylindrical Bushes: These standard, sleeve-like bearings are designed without flanges and serve as the foundational type.
- Flanged Bushes: Equipped with a flange at one end, these bushes provide extra stability and are ideal for situations requiring the limitation of axial movement.
- Split Bushes: Tailored for scenarios where a solid bushing cannot be fitted, split bushes offer a flexible installation option by enclosing the shaft.
- Custom Shapes: To accommodate unique requirements, manufacturers can produce PTFE bushes in specialized shapes.
Industrial Applications
PTFE bushes find applications across a broad spectrum of industries such as automotive, aerospace, food processing, and chemical processing, among others. Their selection is driven by the need for durable performance in challenging conditions where alternative materials might not suffice.
In essence, PTFE bushes stand out due to their low friction, self-lubricating nature, resistance to chemicals, and ability to perform under high temperatures. They are accessible in both metric and imperial sizes and can be tailored to fulfill precise application demands, highlighting their adaptability and utility in various settings.
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