71

The *71-style assembly combines the Style 18 single-acting fluid seal with the Style 62 L-shaped bearing (wear) ring. Made from durable polyacetal resin, the bearing ring replaces traditional bronze or cast iron piston bearings, helping reduce cylinder bore wear and enabling the use of compact, cost-effective steel pistons. Under pressure, the material conforms to the bore size, providing excellent anti-extrusion support and extending seal life