{"product_id":"skf-nitrile-rubber-nbr-seal-40-mm-id-50-mm-od-12-5-mm_md-50x40x12-5-l","title":"SKF Nitrile Rubber (NBR) Seal, 40 mm ID, 50 mm OD, 12.5 mm_MD 50X40X12.5-L","description":"\u003cp\u003eThis seal is a compact, double-acting hydraulic sealing assembly designed to provide primary fluid retention and piston guidance in medium-duty cylinders. It incorporates a nitrile rubber sealing element together with integrated guide rings and anti-extrusion rings to reduce extrusion risk at elevated pressures while eliminating the need for separate piston guides.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eFeatures \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eNitrile primary element offers effective oil sealing and abrasion resistance\u003cbr\u003eIntegrated anti-extrusion rings improve high-pressure performance up to 250 bar\u003cbr\u003eSplit guide rings enable straightforward installation in confined bores\u003cbr\u003eDual-acting design provides sealing on both piston faces for bidirectional use\u003cbr\u003eCompatible with cylinder speeds to 1 m\/s to support dynamic applications\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003e**Applications**\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eSuitable for pneumatic-to-hydraulic conversion cylinders in automation systems\u003cbr\u003eIdeal for hydraulic actuators in electrical switchgear assemblies\u003cbr\u003eUsed with linear motion modules in electronic test rigs\u003cbr\u003eCan be used for repair of industrial hydraulic pistons in mechanical workshops\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eWhat materials comprise the non-sealing components and why are they used\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eThe guide rings are moulded from acetal (POM) for low friction and dimensional stability, while anti-extrusion elements use a polyester-based compound to resist gap extrusion under pressure.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eWhat temperature range can the seal tolerate during operation\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eThe assembly functions over a broad range with upper operating temperatures around 110°C and minimum continuous use down to −20°C, noting reduced performance limits closer to the extremes.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eWhich groove and bore standards affect fitment for replacement tasks\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eCertain metric sizes are designed to match housings produced in line with ISO 6547, ensuring correct groove form and clearance when fitting into compliant cylinders.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eHow should one approach servicing when the seal is split for installation\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eThe split design permits retrofitting into an assembled cylinder without piston removal by compressing the rings into the groove and locating them sequentially into the split joint.\u003c\/p\u003e\u003ch3\u003eSelection guidance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReview the manufacturer specifications for compatibility with your equipment.\u003c\/li\u003e\n\u003cli\u003eConfirm the required dimensions and fitting arrangement before ordering.\u003c\/li\u003e\n\u003cli\u003eCheck the intended operating conditions against the product documentation.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SKF","offers":[{"title":"Default Title","offer_id":56506709999995,"sku":"SKF-267-0459","price":177.12,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5408\/4963\/files\/Y2670459-01.jpg?v=1791929783","url":"https:\/\/tiedex.co.uk\/ar\/products\/skf-nitrile-rubber-nbr-seal-40-mm-id-50-mm-od-12-5-mm_md-50x40x12-5-l","provider":"TIEDEX LIMITED","version":"1.0","type":"link"}