Bronze Brass Thrust Washers CuSn12 are thrust components that are crafted from CuSn12 alloy, a copper-based material containing a specific amount of tin (Sn) and other elements. CuSn12 is a type of bronze alloy that exhibits high strength, good hardness, excellent corrosion resistance, and good thermal conductivity. These properties make CuSn12 thrust washers suitable for applications where durability, wear resistance, and stability are crucial.

Thrust washers are used in various mechanical systems to provide a smooth and reliable interface between moving parts. They are often installed between rotating shafts and stationary components to reduce friction and wear, ensuring smooth operation and extending the service life of the system.

CuSn12 bronze brass thrust washers are widely used in industries such as manufacturing, automotive, aerospace, and heavy machinery. Their ability to withstand high loads and resist wear makes them ideal for applications involving high-speed rotation, heavy-duty operation, or exposure to harsh environments.

In summary, Bronze Brass Thrust Washers CuSn12 are thrust components crafted from CuSn12 alloy, a copper-based material with excellent mechanical and chemical properties. These washers provide a reliable and durable solution for reducing friction and wear in mechanical systems, enabling smooth operation and extending the service life of equipment.

Up to 50% lower purchase costs for your Bronze Thrust Washers CuSn12. cost savings with a simple design.The oilless bronze washer is self-lubricating composed of high strength brass alloy Material: CC483K, DIN1705 CuSn12, CuSn12 washer has higher mechanical values than Rg7 bronze washer.

Bases manufactured with advanced casting technology and built-in solid lubricants. They can be combined with different types of solid lubricants depending on the conditions of use.

Get the bronze washers and bronze thrust washer you need, self-lubricating, custom, or in metric sizes, including oil-embedded thrust bearings,
Inside Diameter, Outside Diameter, Thickness

Radial Bearings - Flanged Bushes - Thrust Washers

Self-Lubricating Oilless Tin bronze Washer, Factory Price, Contact Us!

Various standard oilless washer Dimension products are available.

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Structure And Composition

Cast Bronze Washer

Cusn12 Bronze Washer Description

Chemical composition (nom.)

– Cu 85-88.5%
– Sn 11-13%

Max impurities
– Ni 2.0% (can be part of Cu-content)
– Pb 1.0%
– Zn 0.5%
– P 0.4%
– Mn 0.2%
– Fe 0.25%
– Si 0.01%
– Al 0.01%

1-1/2 inch I.D. X 2 inch O.D. X 1/8 inch Thick, Lead Free Cast Bronze Thrust Washer

Material: Lead Free Cast Bronze

Sintered Bronze, Self-Lubricating, Bronze Thrust Washers

SAE 841 Sintered Bronze Oil Impregnated Thrust Washer

Bronze CuSn12

For parts with high friction and deterioration; Heavily loaded bearings, gears, bushings, worms, hydraulic high-pressure devices. Parts subject to high friction (e.g. thrust bearing sectors, electric pumps, plates subject to friction, etc.).
• Very marine corrosion resistance
• high resistance to friction, wear or pressure
• good mechanical strength
• expensive and heavy

Plain & Self-Lubricating Washer(Bushing Material: Graphite Impregnated Brass)

• Maintenance-free (self-lubricating)

• For heavy load applications
• Tolerance to extreme temperatures
• Long service life

Cast Bronze With Solid Lubricant Plugs - Metric

Oilless Thrust Washers Metric

Characteristics of the material

The material of the oil-free thrust washer is made of sturdy cast bronze based metal with special solid lubricants incorporated. prelubrication under extremely high / low temperature conditions at low speed. This material provides a maintenance free bearing solution, especially for high loads, intermittent movement of oscillations.
This type of bearing can be applied in dry, high temperature, high pressure, corrosive environments, with water or other chemicals, when no oil can be introduced.
It is now widely used in the automotive product line, hydraulic engineering, dam gates, plastic industries, successive casting machines, steel rollers in the metallurgical industry, mineral machinery vessels, turbo generators, hydraulic turbines and injection molding machines.

Graphite Plugged Bronze Washer

Availability

Oilless Bushing forms available in standard dimensions

• Straight Oilless Bushings
• Flanged Oilless Bushings
• Thrust Washer Bushings

Metric self-lubricating bearings and imperial oilless bushings made to order: standard bushing forms in special dimensions, half-bushings, special shapes obtained by stamping or deep drawing, customized bushing designs

Graphite Plugged Bronze Washer Structure

Our material is made of strong cast bronze based metal with special solid lubricants embedded. The base metal withstands high load and the solid lubricants provide self-lubrication. The bearing shows excellent performance without pre-lubrication under conditions of extreme high/low temperature with low speed. This material provides a maintenance-free bearing solution, particularly for highload, intermittent of oscillating motion.

Graphite Plugged Bronze Washer Application

Typical Application

This type of bearing can be applied in dry, high temperature, high pressure, corrosive environment, with water or other chemicals when it is not possible to introduce oil. It is widely used in the automotive product line, water engineering, dams, plastics industries, later casting machines, steel rollers in the metallurgical industry, mineral machinery, ships, turbo generators, water turbines and injection molding machines. etc..

Bronze Thrust Washer With Graphite Plugs Feature

1. Can work without oil for a long time
2. Extremely high lifting capacity, good anti-wear properties and less friction.
3. Especially suitable for low speed and high load.
4. Suitable for reciprocating, oscillating or intermittent motion when the oil film is poorly formed.
5. Good chemical and anti-corrosion performance.
6. Can be used in a wide temperature range from -40 ℃ to + 300 ℃.

Flange graphite bronze oilless bushing

Radial Bearings / Flanged Bearings/ Thrust Washers - Dimensions

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.

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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.

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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.

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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.

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