Steel-Backed Tin-Plated Thrust Washer Bearing with Coating is a high-performance bearing designed to withstand heavy loads and provide smooth, reliable operation in thrust applications.

Constructed with a steel backing, this bearing offers exceptional strength and durability, making it suitable for use in demanding industrial environments. The tin plating adds an extra layer of protection, resisting corrosion and wear, while also improving lubrication properties.

The (Polytetrafluoroethylene) coating provides a low-friction surface that significantly reduces friction and heat generation during operation. This not only enhances the bearing's efficiency but also extends its service life.

The thrust washer design of this bearing allows it to distribute loads evenly, reducing stress concentrations and minimizing wear. Wh you're upgrading existing equipment or installing new machinery, the Steel-Backed Tin-Plated Thrust Washer Bearing with Coating is an excellent choice for improving performance and reliability.

Contact us today to learn more about this bearing and how it can meet your specific industrial requirements. Our team of experts is ready to assist you in selecting the right bearing for your application and provide any necessary support or advice.

Thrust Washer Bearing

THRUST WASHER BEARING SUPPLIER PLAIN BUSHES

Simply called is three layers of composite meaning, -1 refers to the material description is , SF-1 bearing is a layer of steel plate as the matrix, a layer of intermediate sintered spherical bronze powder, a layer of inner surface rolling polytetrafluoroethylene () and lead mixture, by three layers of rolling bearing. And has the characteristics of small friction coefficient, wear resistance, high corrosion and no oil lubrication.

The basic concept
Simply called is three layers composite meaning, -1 refers to the material description is , SF-1 bearing is a steel plate as the matrix, a middle layer of sintered spherical bronze powder, a layer of inner surface rolling polytetrafluorethylene () and lead mixture, by three layers of rolling Ming Sheng bearing. And has the characteristics of small friction coefficient, wear resistance, high corrosion and no oil lubrication. Using this product can reduce the cost, reduce the mechanical volume, avoid the phenomenon of biting shaft and reduce the mechanical noise and so on. Sf-1 products have been widely used in the sliding parts of all kinds of machinery, such as printing presses, textile machines, fitness equipment, hydraulic carriers, micromotors, automobiles, motorcycles and agricultural and forestry machinery.

Sf-1 oil-free bearing is a sliding bearing made of steel plate as base, sintered spherical bronze powder in the middle, and a mixture of rolled polytetrafluoroethylene () and lead on the surface. It has the characteristics of small friction coefficient, wear resistance, good corrosion resistance, no oil lubrication. This product can reduce the cost, reduce the mechanical volume, avoid the phenomenon of biting shaft and reduce the mechanical noise and so on.

1, no oil lubrication or less oil lubrication, suitable for the place can not be refueled or difficult to refueling, can be in use without maintenance.

2, Good wear resistance, small friction coefficient and long service life.

3, has the right amount of elastic-plastic, can distribute the stress on a wider contact surface, improve the bearing capacity of the bearing.

4, the static and dynamic friction coefficient is similar to eliminate the crawling at low speed, so as to ensure the working accuracy of the machine.

5, can make the machine to reduce vibration, reduce noise, prevent pollution, improve and optimize the working environment.

6, in the process of operation can form a transfer film, to protect the use of grinding shaft, no biting shaft phenomenon.

7,The hardness requirements of grinding shaft are low, and the shaft without quenching and tempering treatment can be used, thus reducing the processing difficulty and cost of related parts.

8, thin-walled structure, light weight, reduce the mechanical volume.

9, the back of steel can be electroplated a variety of metals, can be used in corrosive media; At present, it has been widely used in the sliding parts of various machines. Such as automation machinery and equipment (scale, swing, slide, bending, cyclotron, turning parts) guide bush, hydraulic motor, hydraulic cylinder gear pump pu, textile machinery, vending machines, plastic molding machine, die-casting machine, rubber machine, tobacco machine, fitness equipment, office machinery, hydraulic truck, automobile, motorcycle, forestry machinery, etc.

Thrust Washer Bearing Material:

Steel+Bronze+

Thrust Washer Bearing Structure:

Metal-Polymer Composite thrust washer Material

Thrust Washer Bearing Composition:

Steel Back + Porous Bronze Sinter + + Lead

Thrust Washer Bearing Micro section:

1.+ Lead sliding layer

2.Porous Bronze Sinter

3.Steel Backing

4.Tin/Copper coating

Bearing Thrust Washer Features

Suitable for dry running with a low coefficient of friction, low wear rate, good sliding characteristics, the transfer film created will protect the mating metal surface.
Suitable for rotary and oscillating movement, high chemical resistance, lower absorption of water and reduced swelling.
Also performs well with lubrication.

Thrust Washer Bearing Technical Dada

SF-1 Thrust Washers - Metric Size

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Beyond Grease: A Deep Dive into Oilless Bushings & Why Viiplus Leads the Way

Friction is the enemy of efficiency. In countless machines, from massive industrial equipment to intricate automotive components, the constant battle against wear and tear dictates performance, longevity, and maintenance costs. Traditionally, grease and oil have been the go-to solutions, but they come with their own set of challenges: frequent re-lubrication, potential contamination, environmental concerns, and limitations in extreme conditions.

Enter the world of oilless bushings, also known as self-lubricating bearings or sliding bearings. These innovative components offer a smarter way to manage friction, delivering reliable movement without the need for external lubrication.

At Viiplus (www.viiplus.com), we don't just supply these components; we engineer solutions. Leveraging deep expertise in metallurgy and tribology (the science of friction, wear, and lubrication), we've become a leading name in sliding bearing technology. But what exactly are oilless bushings, and why should they be on your radar? Let's dive deeper.

What Exactly Are Oilless Bushings? The Science of Self-Lubrication

Unlike traditional ball or roller bearings that rely on rolling elements and require constant lubrication films, oilless bushings operate on the principle of sliding motion. Their "magic" lies in their material composition and structure, designed to provide their own lubrication at the bearing surface. This can be achieved through several key technologies:

1. Solid Lubricants Embedded: Materials like graphite, MoS₂, or PTFE are embedded directly into the metallic matrix (often bronze) of the bushing. As the shaft rotates or slides, a minuscule amount of this solid lubricant is transferred to the mating surface, creating a low-friction film.

2. Porous Metal Structures: Sintered bronze or iron materials are created with microscopic pores. These pores are vacuum-impregnated with oil during manufacturing. In operation, slight heating causes the oil to expand and seep onto the bearing surface, providing lubrication. When it cools, the capillary action draws the oil back in, creating a closed-loop system.

3. Layered Composites: These often feature a strong backing (like steel), an intermediate sintered layer (like bronze), and a low-friction overlay (often PTFE-based). The PTFE layer provides the primary sliding surface, offering extremely low friction.

Contrasting Logic: Oilless vs. Traditionally Lubricated Bearings

The Tangible Benefits: Why Make the Switch?

Choosing oilless bushings isn't just about eliminating grease guns. It's about unlocking significant operational advantages:

• Drastically Reduced Maintenance: This is the most obvious benefit. No re-greasing means less labor, less scheduled downtime, and simplified maintenance protocols. Imagine the savings across a factory floor!

• Enhanced Reliability: Lubricant starvation is a major cause of bearing failure. Self-lubricating bearings ensure consistent lubrication, leading to predictable performance and longer service life, especially in hard-to-reach locations.

• Superior Performance in Harsh Conditions: Oilless bushings excel where traditional lubricants fail:

  • High Temperatures: Certain types can operate at temperatures far exceeding the limits of conventional greases.

  • Low Temperatures: No grease means no stiffening or freezing issues.

  • Contaminated Environments: The absence of sticky grease reduces the ingress of dirt, dust, and debris.

  • Vacuum or Underwater: Ideal for applications where liquid lubricants are impractical or impossible.

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• Cost Savings (Total Cost of Ownership): While the initial purchase price might sometimes be higher, the TCO is often significantly lower due to savings on lubricants, labor, downtime, and potential component failure replacement.

• Environmental Friendliness: Eliminating oil and grease leakage prevents contamination of products, machinery, and the environment. Crucial for industries like food processing, pharmaceuticals, and textiles.

• Compact & Simplified Designs: Without the need for lubrication systems (nipples, lines, reservoirs), machine designs can be more compact and streamlined.

Exploring Viiplus's Portfolio: Finding Your Solution

Viiplus offers a comprehensive range of self-lubricating bearings designed to meet diverse application needs. Understanding the different series helps in selection:

• JDB Series (Graphite Plugged Bronze): Excellent for high-load, low-speed applications, intermittent motion, and high temperatures. The graphite plugs provide continuous solid lubrication. Ideal for heavy machinery, molds, and hydraulic components.

• SF Series (PTFE-Based Composite): Typically metal-backed (SF-1: steel, SF-2: steel/bronze) with a PTFE-based lining. Offers very low friction, good wear resistance, and suitability for dry running or marginal lubrication. Common in automotive, office equipment, and hydraulics.

• JF Series (Bimetal Bushings): Combines a steel backing with a sintered bronze or lead-bronze lining. Good load capacity and fatigue strength. Often used with grease or oil but can operate marginally lubricated. Found in engines, chassis parts, and agricultural machinery.

• FB Series (Wrapped Bronze): Often made from bronze strip, sometimes with lubrication pockets or through-holes. A cost-effective solution for medium loads and speeds, typically requiring initial greasing but offering extended re-lubrication intervals.

Quick Comparison Chart (General Guide):

(Note: This is a simplified guide. Always consult specific product data sheets or Viiplus experts for precise application requirements.)

Uncertain which material or type suits your project? Our Bushing Material Selection Guide is designed to help, or Contact Us for a Free Quote and Expert Advice.

Why Partner with Viiplus? Expertise Meets Quality

Choosing the right supplier is as critical as choosing the right bushing. Here’s why companies worldwide trust Viiplus:

• Deep Expertise: Our foundation in metallurgy and tribology, coupled with a talented R&D team, means we understand the science behind reliable movement. We don't just sell; we solve friction challenges.

• Uncompromising Quality: We employ advanced manufacturing techniques (including sand casting, centrifugal casting, metal casting, investment casting) and a rigorous quality management system, ensuring every bushing meets the highest standards.

• Comprehensive Range: From standard metric sizes in JDB, SF, JF, and FB series to custom solutions including cylindrical, flange, double flange bushings, wear plates, and guide rails – we have the portfolio to match your needs.

• Global Reach, Seamless Logistics: Based in China, we ship sliding bearings worldwide. Our professional team handles customs clearance efficiently, ensuring smooth, timely delivery with all necessary documentation.

• Customer-Centric Approach: We believe in ethical practices and building trust. We offer flexible production (single units to large series), competitive pricing, and  online support.