C28000 Bronze Bushing for Heavy Equipment

C28000 (Muntz metal) is a copper-zinc alloy that sits between the brasses and the tin bronzes. It offers good strength and thermal conductivity with fair corrosion resistance in atmospheric and fresh-water service, and it machines cleanly, which makes it a practical choice for plain bushings, wear plates and general sliding components on heavy equipment. Where loads are moderate and lubrication can be maintained, it is often a cost-effective alternative to tin bronze.

Design and material selection

C28000 is typically specified for bushings that carry moderate loads at moderate sliding speeds, where the priority is a stable, machinable bearing surface rather than maximum shock resistance. For higher-impact or heavily loaded joints, tin bronze or aluminium bronze grades are usually a better match. Our engineers review the shaft material, load direction, lubrication method and operating temperature before confirming a grade, and can match an original manufacturer's material when replacing a worn part.

• Plain and flanged bushings, thrust washers and sliding plates
• Cast to drawing or reverse-engineered from a worn sample
• Centrifugal, sand or metal mold casting selected to suit the part geometry
• In-house CNC machining to drawing tolerances
• Spectrometer composition check and hardness testing on every batch

Typical applications

C28000 bushings are commonly found in general industrial machinery, pump and valve assemblies, conveyor and bulk-handling equipment, and lighter-duty positions on construction and mining machinery. They are also used as replacement wear parts where the original component was a brass-type bushing and the operating conditions have not changed. For crushing circuits and other high-shock positions, we normally recommend a tin or aluminium bronze instead; see our crusher bronze parts for those applications.

Manufacturing and inspection

We handle casting and machining under one roof, so wall thickness, bore size and flange dimensions stay consistent from pour to final cut. Centrifugal casting is used where a denser, more uniform wall is needed; sand casting suits larger or more complex shapes. Every part is checked for composition and hardness in our own laboratory before dispatch. If you are unsure which grade fits your duty, our bronze bushing range covers the common tin, lead and aluminium bronzes as well.

Send your drawing or a worn sample for a free evaluation.