Oilless Thrust Washer

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Oilless thrust washers, also known as dry thrust washers, are friction-reducing components that are used to support and separate rotating shafts in machinery and equipment.

Unlike traditional thrust washers that use lubricating oil to reduce friction, oil-less thrust washers use self-lubricating materials, such as solid lubricant-embedded copper alloy bearing thrust washers, to achieve the same result without the use of oil.

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Protect your machine with our oilless thrust washer!

Amazing Bronze Bushings Can Protect Your Machine Without Any Oil

  • High hardness, wear-resistance, and fully comply with EU ROHS standards. Can provide spectrometer composition test, strength test.


  • High hardness, wear-resistance, and fully comply with EU ROHS standards. Can provide spectrometer composition test, strength test.


  • High hardness, wear-resistance, and fully comply with EU ROHS standards. Can provide spectrometer composition test, strength test.


  • High hardness, wear-resistance, and fully comply with EU ROHS standards. Can provide spectrometer composition test, strength test.


The benefits of oilless bronze bearings

Oilless Thrust Washer – Wholesale Suppliers Online

Oilless thrust washer incorporate high quality copper alloy based metals with engineered solid lubricant plugs. These bearing thrust washers are designed to accommodate a wide variety of application requirements demanded by today’s equipment. Precise tolerances utilizing strategic plug location and plug compounds ensure performance delivery and lubrication free service. This thrust washer bearing style is available in standard inch, metric and made to order sizes. It provide extreme temperature limits and high load capacity performance.

Oilless thrust washers play a pivotal role in the modern engineering landscape, offering solutions to various mechanical challenges. These components are designed to operate without the need for lubrication, which simplifies maintenance and contributes to the reliability and longevity of mechanical systems.

Oilless Thrust Washer
low friction cast bronze bearing


Bearing Thrust Washer – Accurate Industrial Solutions

The design nowadays requires tremendous demands for self-lubricating bearing material. Even in extremely severe work conditions and maximum load conditions, it also requires maintenance-free. With the cost of increasing, business equipment reliability and plant operation are also increasing. Metal thrust washer bearings to meet the long-term maintenance-free and under the conditions of self-lubricating, thus making the design of reliable long-term self-lubricating system possible. Metallic thrust washer bearing material can be widely used in high load at low-speed rotation conditions, swing and linear reciprocating motion, but also applies to the position where traditional lubrication can not be achieved or the occasion greasing is prohibited, or in special conditions such as dust, shock under load or radiation conditions require long-term and stable use.

The benefits of oilless bronze bearings

Cast Bronze Thrust Washer

A cast bronze thrust washer is a type of bearing component made by casting bronze into a specific shape. The casting process involves heating the bronze to its melting point and then pouring it into a mold to form the desired shape. Once the bronze has solidified, the washer is removed from the mold and may undergo additional machining or finishing processes to meet the specific specifications of the application.

Cast bronze thrust washers are known for their good strength and durability, making them ideal for use in high-load, high-stress applications. They are also resistant to corrosion, making them suitable for use in harsh environments.

Cast bronze thrust washers are commonly used in a variety of applications, including automotive transmissions, pumps, and heavy machinery. They are often used to support rotating shafts and provide a low-friction surface for moving parts to bear against, helping to reduce wear and increase the overall efficiency of the system.

Cast Bronze Thrust Washer
Oilless Thrust Washer

Types of Oilless Thrust Washers

Oilless thrust washers come in various types, each tailored to specific needs. Choosing the right type depends on factors like load conditions, space limitations, and the necessity for self-lubrication. Here’s a summary of the different types:

  1. Flat Washers:
  • Basic and widely used.
  • Simple, flat design for easy installation.
  • Distributes load evenly, reducing stress on surfaces.
  • Made from self-lubricating materials like bronze or polymer composites.
  1. Spring Washers:
  • Also known as wave or belleville washers.
  • Provide initial tension to prevent movement.
  • Maintain tension under fluctuating loads.
  • Made from materials with self-lubricating properties.
  1. Custom-Designed Washers:
  • Tailored to specific applications.
  • Custom dimensions, materials, and features.
  • Designed to optimize performance for unique requirements.
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Low-Friction Thrust Washer

Bronze Thrust Washer

A bronze thrust washer is a type of bearing component used in various mechanical systems to reduce friction between moving parts. It is typically made of bronze, a material that is known for its good strength, durability, and resistance to corrosion. The washer is placed between two surfaces that move relative to each other, providing a smooth and low-friction interface. This helps to reduce wear on the moving parts, as well as increase the overall efficiency of the system.

Bronze thrust washers can be found in a variety of applications, including automobiles, machinery, and equipment. They are commonly used in applications where high loads and heavy-duty use are expected. The properties of bronze make it a popular choice for thrust washers because it is able to withstand high loads and extreme conditions, while also providing long-lasting performance.

low friction cast bronze bearing

Common Materials Used in Oilless Thrust Washers

Several materials are commonly used in the construction of oilless thrust washers, each with its own set of advantages:

  1. Bronze: A popular choice due to its excellent wear resistance, strength, and ability to withstand high loads.
  2. Brass: Offers good corrosion resistance and is often used in applications where cost is a consideration.
  3. Phosphor Bronze: Has added lubricity due to the presence of phosphorus, making it ideal for self-lubricating applications.
  4. Polymer Composites: Materials like PTFE are often used in combination with metals to enhance lubricity and reduce wear.
  5. Graphite: Known for its natural lubricating properties, graphite is often used as a filler material in composite washers.
  6. Silicon Carbide: A ceramic material that provides excellent wear resistance and can operate effectively at high temperatures.
  7. Oil-Impregnated Bearings: These are not washers per se, but materials that have been pre-soaked in oil for self-lubrication.

The benefits of oilless bronze bearings

How Does A Self-Lubricating Thrust Washer Work?

Self-lubricating thrust washers work by releasing a solid lubricant during operation. The solid lubricant is embedded in the matrix of the thrust washer and is released through a process called micro-smearing. Micro-smearing occurs when the lubricant particles are sheared off the surface of the thrust washer during operation. The sheared-off particles then form a lubricating film between the bearing surfaces, reducing friction and wear.

As a common component in mechanical systems, bearing thrust washers are widely used in reciprocating rotary motion occasions in aerospace, automobiles, ships, and other fields. Its main function is to locate and avoid direct contact between components, reduce component movement and wear, and improve system stability.

Self-Lubricating Thrust Washer
Oilless Thrust Washer

Material Properties

●Allows maintenance-free and long-life operation;
●Suitable for high static and dynamic loads;
●With low and smoothly coefficient of friction and without stick-slip effects;
●Suitable for dirty, corrosion, impact load, and edge loading;
●The base material provided a good shock-absorbing capacity;
●Can be used over a large temperature range;
●Suitable for reciprocating, rotating, and oscillating movement with start frequency and difficulty to form oil film occasions;
●With a low wear rate and long life service.

In conclusion, the material used in oilless thrust washers is a critical factor in determining their performance. By understanding the properties of different materials and how they impact performance, we can select the most appropriate material for a given application. This ensures the reliability, longevity, and efficiency of the mechanical systems in which these washers are used.

Bronze Thrust Washer Sizes Chart

The size of a bronze thrust washer will depend on the specific application, including the size of the shaft or bearing it will be supporting, the amount of load it will be subjected to, and the environment in which it will be operating. Bronze thrust washers can be custom-made to meet specific requirements and are available in a wide range of sizes to accommodate different applications.

thrust washer size chart

Oilless Thrust WasherOilless Washer 2020.2505
Oilless Thrust WasherOilless Washer 2525.2555
Oilless Thrust WasherOilless Washer 3030.2605
Oilless Thrust WasherOilless Washer 3535.2705
Oilless Thrust WasherOilless Washer 4040.2807
Oilless Thrust WasherOilless Washer 4545.3907
Oilless Thrust WasherOilless Washer 5050.31008
Oilless Thrust WasherOilless Washer 5555.31108
Oilless Thrust WasherOilless Washer 6060.31208
Oilless Thrust WasherOilless Washer 6565.31258
Oilless Thrust WasherOilless Washer 7070.313010
Oilless Thrust WasherOilless Washer 7575.313010
Oilless Thrust WasherOilless Washer 8080.315010
Oilless Thrust WasherOilless Washer 9090.517010
Oilless Thrust WasherOilless Washer 100100.519010
Oilless Thrust WasherOilless Washer 120120.520010

Experts In Bronze Thrust Washer

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A reputable supplier and manufacturer -provides guidance and recommendations on selecting the right size of oilless thrust washer for your specific needs.

Custom Design

Custom oilless thrust washers’ size and shape of the washer, as well as the materials used, can be tailored to meet the specific requirements of the application.

Thrust Washer Vs Flat Washer

The Difference Between An Oilless Thrust Washer And A Flat Washer

Thrust washers and flat washers are two commonly used mechanical components in various engineering applications. Both of these washers serve different purposes and are used in different ways.

An Oilless Thrust Washer

An oilless thrust washer is a type of thrust washer that does not require any lubrication. This makes them ideal for use in environments where oil or other lubricants cannot be used, such as in food processing, pharmaceutical manufacturing, or cleanroom environments. Oilless thrust washers are made from copper alloy with graphite, which has low friction coefficients and can operate without the need for lubrication.

A Flat Washer

Flat washers are a type of washer that are typically wider and thicker than thrust washers. They are used to distribute the load in a radial direction, perpendicular to the axis of rotation. Flat washers are commonly used in applications where a bolt or screw is used to fasten two components together. They are placed between the two components to prevent damage to the surfaces and provide a more secure grip. Flat washers are also used to increase the effective size of the bolt head and provide a larger surface area for tightening.

It is important to choose the right type of washer for the specific application to ensure proper performance and longevity. Oilless thrust washers are ideal for applications where lubrication is not possible, while flat washers are more suitable for applications where a radial load is applied.

In conclusion, oilless thrust washers and flat washers both play an important role in mechanical engineering. While they serve different purposes, both offer benefits depending on the specific requirements of the application. When choosing between the two, it is important to consider the type of load that will be applied, the environment in which the components will operate, and the materials that will be used to construct the components.

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