{"product_id":"ohlins-o-ring-42x2-nbr-70-00438-86","title":"Öhlins O-ring 42x2 NBR 70 – 00438-86","description":"\u003cp\u003eO-ring 42x2 NBR 70, Öhlins part number 00438-86. An oil seal that has hardened lets the shaft pass oil past it, and the damping fades long before the leak becomes visible.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eÖhlins part number 00438-86\u003c\/li\u003e\n\u003cli\u003eCross Section 2 mm\u003c\/li\u003e\n\u003cli\u003eMaterial NBR 70\u003c\/li\u003e\n\u003cli\u003eInner Diameter 42 mm\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere It Sits\u003c\/h2\u003e\u003cp\u003e00438-86 is the 42 mm, 2 mm, NBR 70 version — Öhlins lists each size separately. Static seals and dynamic seals are not interchangeable even in the same size. The groove does half the work: the ring only seals if the groove is clean and undamaged. Öhlins recommends replacing seals whenever the unit is opened, not only when it leaks.\u003c\/p\u003e\u003ch2\u003eOriginal Öhlins Part\u003c\/h2\u003e\u003cp\u003eThe alternative to a service part is usually a new damper, which is why this catalogue exists. Parts remain available years after a unit leaves the current price list, which is unusual in this trade. Order by part number. The dimensions below are the ones Öhlins publishes for it. Tell us the damper's model designation and year and we will match the number for you.\u003c\/p\u003e\u003ch2\u003eGetting the Number Right\u003c\/h2\u003e\u003cp\u003eThe reliable route is the exploded drawing: find the position, read the number, order it — 00438-86 in this case. Öhlins states inner diameter 42 mm, cross section 2 mm, material NBR 70 for this number, and those figures are the deciding ones. Nitrile, Viton and PTFE behave differently with temperature, and Öhlins picks per position. Cross-section is as important as diameter: an O-ring that is too thin will not seal at pressure.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eIf you would rather not open the damper yourself, we can do it — we are an authorised Öhlins service centre and rebuild these units as a matter of routine.\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 00438-86\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 42 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCross Section:\u003c\/em\u003e 2 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":53646903083274,"sku":"00438-86","price":500.0,"currency_code":"XOF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/00438-86_6ebb3946-e488-478f-b520-b0a31563a8eb.png?v=1788869443","url":"https:\/\/inter-pace.com\/en-ml\/products\/ohlins-o-ring-42x2-nbr-70-00438-86","provider":"Inter-Pace","version":"1.0","type":"link"}