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Fluid Power

ACM Composite Bearings has been developing, manufacturing and supplying highly engineered composite wear rings and bearing strips for use in hydraulic cylinders for over twenty years.

The ACM range of materials have been specially developed to meet the demands of applications requiring medium to high load capability, low wear, low friction and long life. Corporate brand colour e.g. orange, navy, red, is also available for volume or OEM customers. Standard wear rings for use as rod and piston guides for medium to heavy duty hydraulic cylinders can be manufactured in a variety of fabric reinforced materials including polyester and cotton phenolic composites. ACM use the latest manufacturing standards and can machine up to 1.3 m in diameter.

The full range of materials has excellent damping characteristics low swell and possess excellent chemical resistance. For the use of wear rings and bearing strips for cylinders operating in non-standard chemicals ACM Composite Bearings can offer specially formulated grades to suit the application.

Standard bearing strips can be supplied in thicknesses from 2 mm to 5 mm and widths from 5 mm to 50 mm with lengths of 5 m long enabling cylinder diameters in excess of 1.5 m to be fitted in one complete ring. These bearing strips are manufactured using the latest machinery resulting in accurately controlled tolerances, with zero curvature on the length allowing for easy installation.


  • Rod guide/wear rings
  • Piston guide/wear rings
  • Quick repairs