The JDB-JTW graphite bronze thrust washer is a self-lubricated and oil-free bearing component designed for use in various industrial applications. Its graphite bronze construction ensures excellent wear resistance, corrosion resistance, and load-bearing capacity.

The thrust washer's self-lubricating properties eliminate the need for regular lubrication, significantly reducing maintenance requirements and operational costs. This feature also ensures smooth and reliable operation, even in high-speed or heavy-load conditions.

The JDB-JTW graphite bronze thrust washer is suitable for use in pumps, motors, compressors, and other rotating equipment. It can effectively reduce friction and wear, improving the efficiency and reliability of the system.

With its self-lubricating and oil-free design, the JDB-JTW graphite bronze thrust washer offers a convenient and efficient bearing solution that requires minimal maintenance and upkeep. It is an ideal choice for industrial applications where reliability and durability are crucial.

Graphite Thrust Washer JDB-JTW Self Lubricated

Bronze Graphite Lubricating Metal Shim Washer

Graphite Self Lubricated Thrust Washer JDB-JTW size chart

Bronze Lubricating Metal Shim Washer Material Graphite Impregnated Brass - Plain & Self lubricating washer
The most standard type in the Copper Alloy series. Volume Discount is available. Available in METRIC; Washer Design. CAD Available

Bronze Thrust Washer Feature

Bronze alloy CuZn25Al5Mn4Fe3 + Graphite plugs

Bronze Thrust Washer Structures

Bronze thrust washer with solid lubricant plug (graphite)

① Solid lubricant film
② Solid lubricant plug
③ Bronze backing

Material features

1. Provides long-term operation without maintenance;
2. Suitable for high static and dynamic loads;
3. With low and smooth coefficient of friction and no stick-slip effects;
4. Suitable for dirty, corrosive, shock and edge loads;
5. The base material has good shock-absorbing ability;
6. Can be used over a wide temperature range;
7. Suitable for reciprocating, rotating and oscillating motion with an initial frequency
8. The complexity of the formation of an oil film;
9. Low wear and long service life.

Oilless Thrust Washer, Oil Free Copper Alloy Washers - Select, configure, order

Oilless Bearing, Graphite Plugged Bearing, Solid Bronze Bearing, Sliding Bearing, Dry Bearing & Pre-lubrication Plain Bearing and Bushing

High Tensile Brass Alloy, Solid Lubricant Embedded

Various Size, Various Application Available

Bronze Thrust Washer Characteristics

Bronze Thrust Washer With Graphite Insert provides both the good wear resistance and great self-lubricating feature of the bearings. This designation enables the bearings to be operated without oiling or greasing maintenance.

• The bronze thrust washer with graphite plugs provides both good wear resistance and excellent self-lubricating function of this washer.
• This designation allows the thrust washer to be operated without oiling or greasing maintenance.
• It is widely used in the field of high load and intermittent motion as well as oscillating motion condition.

Self-Lubricating Bronze Thrust Washer Technical Data

Bronze Thrust Washer Applications

The Oilless Bronze Thrust Washer is widely used in below:

1. Heavy duty tractor and farm equipment
2. Mining equipment
3. Forestry equipment
4. Mixing tank blade shaft support
5. Foundry, furnace and steel production equipment
6. HVAC applications
7. Heavy duty casters and wheel support bearings
8. Oven kart veneer drying applications, and possibly other applications

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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