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Cast Bronze Bushings & Thrust Washers

An assortment of bushings and washersCast bronze bushings and thrust washers are mechanical components created by machining cast bronze bars into precise shapes. These durable components support heavy-load and high-wear applications in a wide range of industries, including oil and gas, aerospace, industrial machinery, marine, defense, tool and die, plastic mold tooling, and heavy equipment. Through partnerships with reputable U.S. manufacturers, Bushings & Bars sources cast bronze bushings and thrust washers designed to meet the needs of a diverse customer base. We work hard to ensure fast, direct delivery of high-quality products to our customers.

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What are Cast Bronze Bushings?

A bushing, also known as a plain bearing, is designed to reduce friction between two surfaces as they slide against one another. In machines and equipment with rotating or sliding shafts, bushings are used to enhance overall efficiency and longevity while reducing noise and vibration. They generally come in the following two styles:

 

As friction-reducing components, it is essential that bushings are constructed from wear-resistant materials that provide good sliding properties. While bushings can be fabricated from a variety of plastics and metals, bronze provides several distinct advantages over alternative options in heavy-load applications. As an inherently moldable and easy-to-machine material, bronze is well-suited for achieving a range of bushing designs.

The bronze alloy used in cast bronze bushings undergoes a continuous or centrifugal casting process, giving the metal a finer grain structure and improved mechanical properties. The bronze alloy cast bar is then cut and processed into the finished bushing using a computer numerical control (CNC) lathe or other precision machining method. Cast bronze bushings exhibit excellent structural strength, durability, and resistance to compressive forces, making them well-suited for harsh, high-wear applications. They can also withstand high temperatures without losing their strength.

Applications of cast bronze bushings include:

What are Thrust Washers?

A thrust washer is a flat, disc-shaped bearing that is placed between a rotating component and stationary component in a rotary assembly. Designed to control axial motion, thrust washers keep components aligned along a shaft by providing them with a surface to run up against. They also help prolong the life of these components by protecting them from excess wear during use. For certain applications, grooved raceways can be integrated into the washer’s design to facilitate the movement of axial forces in one direction.

Available in a range of thicknesses, sizes, and styles, cast bronze thrust washers are used in a wide variety of high-wear applications. Some examples include:

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Our Cast Bronze Bushings and Thrust Washers

C93200 (SAE 660) Cast Bronze Bushings

The C93200 (SAE 660) series of cast bronze sleeve and flanged bushings are made from an all-purpose leaded bronze alloy with excellent antifriction properties and machinability. These bushings exhibit exceptional wear resistance, durability, and shock-loading capabilities, allowing them to provide reliable performance across a long lifespan. Physical properties include:

Bushings & Bars offers the following C93200 (SAE 660) products:

C87850 (ECO Bronze) Cast Bronze Bushings & Thrust Washers

The C87850 (ECO Bronze) series of cast bronze bushings and thrust washers provides an eco-friendly, lead-free alternative to the C93200 (SAE 600) leaded bronze series. ECO Bronze is an RoHS- and REACH-compliant alloy that has been tested through multiple independent laboratories and confirmed to be free of lead, arsenic, and bismuth. In addition to being environmentally safe and cost-effective, ECO bronze is proven to be equal to or better than traditional alloys in terms of quality and performance. Other beneficial properties of this material include:

These properties make ECO Bronze cast bronze bushings and thrust washers perfect for meeting the strict safety and/or environmental regulations of the energy, marine, construction, medical, and food and beverage industries.

Mechanical properties of the ECO BRONZE C87850 series include:

Bushings & Bars offers the following C87850 (ECO Bronze) cast bronze products:

ToughMet (C96900) Cast Bronze Bushings & Thrust Washers

The ToughMet (C96900) series of cast bronze bushings and thrust washers are made from a continuous-cast, spinodally hardened alloy with high tensile strength and excellent machinability. This alloy exhibits excellent galling, corrosion, and wear resistance, allowing bushings and thrust washers to last longer and carry higher loads. ToughMet bushings and thrust washers provide performance advantages in a range of demanding industries, including:

Mechanical properties of the ToughMet (C96900) series include:

The ToughMet series of bushings and thrust washers offers the highest PV rating in the Bushings & Bars catalog. Products include:

Partner with Bushings & Bars

With their high strength and durability, cast bronze bushings and thrust washers help prolong and enhance the performance of oil and gas equipment, aircraft engines, industrial machinery, and other critical, high-wear systems. Working closely with trusted U.S. manufacturers, Bushings & Bars sources high-quality cast bronze bushings and thrust washers that are carefully matched to the customer’s specific needs. Our vast inventory of products gives us the versatility to provide optimized solutions for customers from a wide range of industries.

To learn more about our product selection and how we can help you find the right solution for your application, please contact us today.

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