Guide rings or Wear rings provide a bearing surface to center the piston and rod dynamic surfaces in a reciprocating cylinder application. The guide ring prevents metal-to-metal contact and improves seal life performance.The advantage of these non-metallic guide rings (compared with traditional metals guide rings) are, among others, a high bearing load capacity, the elimination of local stress concentrations, wear resistance, a low friction and low maintenance cost. We offer guide rings in a variety of materials. They are manufactured and packaged to promote an open split before installation and, therefore, are clamped with their outside surface in the cylinder head. This makes it easier to assemble the cylinder laterare produced with strict tolerances which protect against heavy loads and guarantee effective function parameters in hydraulic and pneumatic systems. Widely used for piston or rod application and in combination with seals designed without their own guide system