When it comes to choosing the best bearing for your engineering projects, it’s crucial to consider a solution that is not only high-performing but also cost-effective and versatile. One such powerful solution is the PTFE-lined steel bearing, a product that offers outstanding durability, low friction, and a wide range of applications.

SELF-LUBRICATING METRIC FLANGED BUSHING

A self-lubricating metric flanged bushing made from steel-bronze with PTFE (polytetrafluoroethylene) is a specialized type of bearing designed for applications requiring minimal maintenance and high durability. Here are some key features of this type of bushing:

Material Composition:

Steel-Bronze: This alloy provides the strength and corrosion resistance of steel combined with the lower friction and higher wear resistance of bronze. The bronze is typically sintered on the steel backing, creating a strong bond and a durable structure.

PTFE Coating: PTFE is a low-friction, synthetic fluoropolymer used as a coating on the inner surface of the bushing. It reduces friction and wear, allowing the bushing to operate smoothly without additional lubrication.

Self-Lubricating Design: The incorporation of PTFE means that these bushings are self-lubricating. PTFE has excellent lubrication properties and can operate effectively without the need for additional greases or oils, which is ideal in environments where lubricants could attract dirt or contaminants.

Flanged Design: The flange on the bushing provides a larger surface area, which helps in distributing the load more evenly. This is particularly beneficial in applications where axial loads or thrust forces are present. The flange also facilitates easier mounting and positioning in an assembly.

Applications:

These bushings are used in various mechanical and industrial applications where maintenance can be difficult or where grease and oil lubrication is undesirable.

Common applications include automotive components, agricultural machinery, industrial robots, and any system where components move relative to each other and require durable, reliable operation under high-load or high-wear conditions.

Advantages:

Reduced Maintenance: No need for regular lubrication reduces maintenance costs and effort.

High Durability and Longevity: The combination of steel-bronze and PTFE ensures a long service life even under harsh conditions.

Environmental Resistance: PTFE provides excellent chemical and temperature resistance, making these bushings suitable for harsh environmental conditions.

Metric Sizes: These bushings are available in various metric sizes to fit different shaft diameters and housing dimensions, facilitating their use in a wide range of equipment and machines.

These bushings represent a sophisticated solution in engineering, balancing material properties and design features to meet the needs of modern machinery and industrial applications.

The Structure: What Makes PTFE-Lined Steel Bearings So Effective?

These bearings feature a steel backing strip layered with sintered bronze and PTFE (Polytetrafluoroethylene). This unique structure is carefully designed to deliver maximum performance:

1. Lead-Free Polymer Fiber Mixture: Forms a protective initial transfer film that coats the mating surface of the bearing assembly. This oxide-type solid lubricant film ensures low friction and reduces wear on mating surfaces.
2. Sintered Bronze Powder Layer: Maximizes thermal conductivity, efficiently drawing heat away from the bearing surface while also acting as a reservoir for the PTFE mixture.
3. Steel Backing: Offers high load-carrying capacity and exceptional heat dissipation, ensuring the bearings can withstand demanding applications.
4. Copper/Tin Plating: Provides the entire structure with excellent corrosion resistance, extending the bearing’s lifespan even in challenging environments.

Versatile Applications

These PTFE-lined bearings are tailored for high-duty applications, including:

• Automotive Suspension Struts: Enhance vehicle stability by providing smooth, low-friction movement.
• Shock Absorbers: Reduce the impact of road irregularities, improving comfort and handling.
• Hydraulic Cylinders: Deliver consistent and efficient movement under high pressure.
• Gear Pumps and Motors: Support smooth fluid transfer in various industrial processes.
• Axial and Radial Piston Pumps and Motors: Maintain precision and reliability under varying loads.

Comprehensive Range

We offer PTFE-lined bearings in a wide variety of formats, including:

• Metric & Imperial Plain Bearings
• Metric Flanged Bearings
• Metric & Imperial Washers
• Metric & Imperial Strip Bearings

Custom sizes can also be manufactured according to your unique project requirements.

Alternative Brands

If you’re considering alternative brands, our PTFE-lined bearings are equivalent to split bushings Garlock’s DU, P10, and P14 models, providing a seamless transition if you’re accustomed to those brands.

Beyond Steel: Bronze and Stainless Steel Backing Options

For applications where standard steel may not be suitable, we also offer bronze-backed and stainless steel-backed PTFE-lined bearings. These variants offer the same dimensions and tolerances but provide enhanced resistance to specific environmental challenges.

Need a PTFE- lined Bearings, Connect with Us

Our PTFE-lined wrapped bearings are versatile and durable, making them suitable for a wide array of applications. Contact us today to discuss how these bearings can be tailored to meet your project’s demands and provide a reliable, efficient solution for your engineering needs.

High-performance lined bearings with PTFE-lined, metal-backed bushings consist of a metal shell with a polytetrafluoroethylene (PTFE) coating applied to the inside surface as the wear surface of the bearing. For applications involving water or chemicals, the metal shell of PTFE-lined bearings can be made from a stainless steel base. Thanks to the very low coefficient of friction of PTFE, the friction level of PTFE-lined bearings typically remains excellent throughout the bearing’s lifespan.