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The Hallite 753 is a compact assembly designed and developed specifically for one piece pistons.The assembly comprises a wera-resistant polyurethane slip ring which is loaded by an NBR ring. There are split 'L' shaped anti-extrusion bearings made from polyacetal resin on both sides of the seal.The proportions of the range have been determined to give satisfactory performance when used with the recommended operating conditions. Hallite 753 is manufactured using two different profiles as illustrated in the datasheet.The parts list clearly indicates which profile is used for each size. Please contact your local Hallite sales office for additional information and technical details.