{"product_id":"value-collection-zmscnu6226-29-u-cup-seal-buna-n-5-piece","title":"Value Collection ZMSCNU6226-29 U Cup Seal Buna-n 5 Piece","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION ZMSCNU6226-29 is a Buna-N U cup seal used to create a positive fluid seal in hydraulic and pneumatic cylinder applications. The U cup profile flexes under pressure to maintain contact with the bore wall, preventing fluid bypass in single-acting or double-acting configurations. This pack contains 5 seals, each measuring 1-3\/4 inches inside diameter and 2-3\/8 inches outside diameter. Buna-N (nitrile rubber) construction provides solid resistance to petroleum-based hydraulic fluids, oils, and general industrial fluids. Maintenance technicians and hydraulic system technicians are the typical installers.\u003c\/p\u003e\n\u003cp\u003eU cup seals of this size are commonly used in medium-bore hydraulic cylinders found in industrial equipment, mobile machinery, and fluid power systems. The 1-3\/4 inch inside diameter fits standard rod or piston dimensions in that bore range. The 5-piece pack is suited for shop stock, cylinder rebuild kits, or multi-unit service jobs where having spares on hand reduces downtime.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBuna-N material resists petroleum-based hydraulic fluids and oils\u003c\/li\u003e\n  \u003cli\u003eU cup profile maintains sealing contact under system pressure\u003c\/li\u003e\n  \u003cli\u003e1-3\/4 inch inside diameter for standard medium-bore cylinder fitment\u003c\/li\u003e\n  \u003cli\u003e2-3\/8 inch outside diameter for proper housing engagement\u003c\/li\u003e\n  \u003cli\u003e5-piece pack supports seal replacement across multiple cylinders or as bench stock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement U cup seal for hydraulic and pneumatic cylinders requiring a 1-3\/4 inch inside diameter by 2-3\/8 inch outside diameter Buna-N U cup profile.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eHydraulic system technicians and maintenance mechanics typically perform U cup seal replacements. Depressurize and bleed the hydraulic circuit completely before disassembling the cylinder. Inspect the bore, rod, and gland surfaces for scoring before installing new seals, as surface damage will compromise seal life. Install U cups with the lip oriented toward the pressure source to ensure proper sealing action.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeal Type\u003c\/strong\u003e: U Cup\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeal Material\u003c\/strong\u003e: Buna-N (Nitrile Rubber)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 1.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 2.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 5 pieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ZMSCNU6226-29\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51714526937394,"sku":"ZMSCNU6226-29","price":19.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b2af022bfb27813b4500b337054733ed.jpg?v=1788502740","url":"https:\/\/voomisupply.com\/products\/value-collection-zmscnu6226-29-u-cup-seal-buna-n-5-piece","provider":"Voomi Supply","version":"1.0","type":"link"}