Centrifugal Pump Wear Rings

Cast rings are found all around us, from jet engines to military equipment. Although a centuries-old design, subpar manufacturing can cause catastrophic failure. Ensure your finished product fits, forms, and functions as intended with high-quality cast rings from U.S. Bronze Foundry & Machine.

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Centrifugal Pump Wear Rings

What are cast rings?

Cast rings are hard-wearing cylindrical devices supplied in semi-finished and finished conditions. Typically, these rings are bought semi-finished and undergo additional machining to create a final product. Examples of parts made with cast rings include:

  • Bearings
  • Clutches
  • Couplings
  • Drives
  • Flanges
  • Gears
  • Valves
  • Pump Wear Rings

Centrifugal pump wear rings are circular devices that attach to a pump impeller or casing, allowing a small running clearance without causing wear of the actual impeller or pump casing material. These wear rings are designed to be replaced periodically during a pump’s life and prevent more costly replacement of the impeller or casing.

Trusted industrial ring manufacturer

U.S. Bronze Foundry & Machine is a single-source supplier of cast rings for heavy machinery. We perform every metal casting step in-house under the direction of an experienced management team. Our capabilities include: 

  • Research & Design
  • Mold-Making
  • Prototyping
  • Full-Scale Casting 
  • Finished Machining
  • Inspection 
  • Delivery 

We produce cast rings per client specifications with centrifugal and static casting techniques. Built-in automation and controls ensure heightened precision and quality. Our area of expertise is manufacturing large items. 



  • Castings up to 35,000 pounds
  • Lengths of up to 80 inches for centrifugally cast rings
  • Outside diameters as large as 158 inches for centrifugally cast rings
  • No size limit for statically cast rings

An onsite machine shop enables us to deliver finished castings with precise dimensions, streamlining client supply chains by cutting out time-consuming secondary processing. The shop contains advanced CNC equipment capable of machining workpieces with: 

  • Outside diameters of 150 inches
  • Lengths of 80 inches 
  • Tolerances are +/- .001 inches

On your side

As a leading cast wear ring manufacturer, U.S. Bronze Foundry & Machine strives to forge long-term relationships with customers. Our experts work with you to cast the best parts possible. 

A stringent quality management system ensures every casted component meets applicable industry standards or client specifications. We can produce rough parts as quickly as two weeks and finished pieces as fast as eight weeks, depending on lead time and other factors. Contact us to discuss your custom wear ring needs further. 

Materials we utilize

Without cast rings, you can’t produce robust equipment. At U.S. Bronze Foundry & Machine, we support your design goals by casting rings from many metal alloys. 

Other metal alloys can be used upon request. Give us a call for more information.

Uses for cast rings 

Cast rings play a pivotal role in the operation of many applications. Some examples include:

You’ll find them in the mining, power generation, and drilling equipment. They help power rock-crushing machinery, windmills, and railways.