{"product_id":"ohlins-o-ring-4-5x2-00438-31","title":"Öhlins O-ring 4.5x2 – 00438-31","description":"\u003cp\u003eO-ring 4.5x2, Öhlins part number 00438-31. Seal heads combine the oil seal, the dust seal and the bushing in one assembly.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eCross Section 2 mm\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 00438-31\u003c\/li\u003e\n\u003cli\u003eMaterial NBR 70\u003c\/li\u003e\n\u003cli\u003eInner Diameter 4.5 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFunction\u003c\/h2\u003e\u003cp\u003e4.5 mm, 2 mm, NBR 70: that is the whole specification, and it has to match what came out. Öhlins specifies seal compounds for temperature stability rather than for the lowest unit cost. O-rings are single-use in a pressurised damper — they are replaced whenever the unit is opened. The dust seal does the hard work: it keeps the grit that would score the shaft away from the oil seal.\u003c\/p\u003e\u003ch2\u003eGenuine Service Part\u003c\/h2\u003e\u003cp\u003eEvery part in this catalogue is one Öhlins fits itself during assembly and service. The part number is the contract: it defines material, dimension and finish together. Öhlins numbers do not follow a logic you can guess — always read them from the documentation. Tell us the damper's model designation and year and we will match the number for you.\u003c\/p\u003e\u003ch2\u003eIdentifying the Right Part\u003c\/h2\u003e\u003cp\u003eOrder under 00438-31. Where several sizes share a description, only the number separates them. Öhlins states inner diameter 4.5 mm, cross section 2 mm, material NBR 70 for this number, and those figures are the deciding ones. Seals harden with heat and age even when the machine has not been ridden much. Seals are the part of a damper that decides whether it holds its gas charge and its oil, and they are the usual reason a unit ends up on the bench.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eÖhlins recommends that its units are serviced by an authorised centre. We are one: rebuild, revalve and setup all happen in our own workshop.\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 00438-31\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 4.5 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":53646900166922,"sku":"00438-31","price":0.84,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/00438-31_3a565047-4a72-45fd-81a3-156864b829b1.png?v=1788869395","url":"https:\/\/inter-pace.com\/en-es\/products\/ohlins-o-ring-4-5x2-00438-31","provider":"Inter-Pace","version":"1.0","type":"link"}