{"product_id":"ohlins-o-ring-47-35x1-78-nbr70-00438-16","title":"Öhlins O-ring 47.35x1.78 NBR70 – 00438-16","description":"\u003cp\u003eO-ring 47.35x1.78 NBR70, Öhlins part number 00438-16. An O-ring seals by being squeezed into its groove; the cross-section is therefore as important as the diameter.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCross Section 1.78 mm\u003c\/li\u003e\n\u003cli\u003eMaterial NBR 70\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 00438-16\u003c\/li\u003e\n\u003cli\u003eInner Diameter 47.35 mm\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFunction\u003c\/h2\u003e\u003cp\u003eDimensionally this is 47.35 mm, 1.78 mm, NBR 70, which is how it is told apart from the rest of the range. O-ring sizes are given as inner diameter and cross-section, and both have to match — a close size is not a match. An oil seal that has hardened lets the shaft pass oil past it, and the damping fades long before the leak becomes visible. O-rings are single-use in a pressurised damper — they are replaced whenever the unit is opened.\u003c\/p\u003e\u003ch2\u003eWhy the Original\u003c\/h2\u003e\u003cp\u003eThe tolerances here are the ones the unit was assembled to, not a pattern equivalent's interpretation of them. Rebuilding to specification only works if the parts are to specification — that starts here. Tell us the damper's model designation and year and we will match the number for you. If you are between two sizes, send us the measurement and we will check it against the catalogue.\u003c\/p\u003e\u003ch2\u003eGetting the Number Right\u003c\/h2\u003e\u003cp\u003ePart number 00438-16 is unambiguous; the description alone is not, because Öhlins uses similar wording across sizes. The published dimensions are inner diameter 47.35 mm, cross section 1.78 mm, material NBR 70 — measure the old part against them if you are unsure. Öhlins uses seals with a spring-loaded lip so they follow the shaft as it wears. Seal heads combine the oil seal, the dust seal and the bushing in one assembly.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eWe are an authorised Öhlins service centre, so you do not have to source the tools and the nitrogen: send us the damper and we rebuild it with the correct parts and the correct setting.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eBrand:\u003c\/em\u003e Öhlins\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003ePart Number:\u003c\/em\u003e 00438-16\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e O-Rings\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eInner Diameter:\u003c\/em\u003e 47.35 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCross Section:\u003c\/em\u003e 1.78 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eMaterial:\u003c\/em\u003e NBR 70\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCountry of Origin:\u003c\/em\u003e Sweden\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Öhlins","offers":[{"title":"Default Title","offer_id":53646899380490,"sku":"00438-16","price":9.61,"currency_code":"DKK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/00438-16_65be74ac-0e1b-490a-881b-d6067a8f8d9d.png?v=1788869376","url":"https:\/\/inter-pace.com\/en-dk\/products\/ohlins-o-ring-47-35x1-78-nbr70-00438-16","provider":"Inter-Pace","version":"1.0","type":"link"}