{"product_id":"ohlins-o-ring-40x3-nbr70-low-temp-00638-93","title":"Öhlins O-ring 40x3 NBR70 Low temp – 00638-93","description":"\u003cp\u003eO-ring 40x3 NBR70 Low temp, Öhlins part number 00638-93. Size is given as inner diameter and cross-section; a close size is not a match.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eInner Diameter 40 mm\u003c\/li\u003e\n\u003cli\u003eMaterial NBR 70\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 00638-93\u003c\/li\u003e\n\u003cli\u003eCross Section 3 mm\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFunction\u003c\/h2\u003e\u003cp\u003eThe published figures are 40 mm, 3 mm, NBR 70. Measure the old part against them before ordering. Cross-section is as important as diameter: an O-ring that is too thin will not seal at pressure. Size is given as inner diameter and cross-section; a close size is not a match. Seal heads combine the oil seal, the dust seal and the bushing in one assembly.\u003c\/p\u003e\u003ch2\u003eOriginal Öhlins Part\u003c\/h2\u003e\u003cp\u003eThe part number is the contract: it defines material, dimension and finish together. A damper that can be rebuilt is a damper that stays on the bike; that is the whole argument for original service parts. Ask us before ordering if you are unsure: a wrong part in a pressurised unit is an expensive lesson. Order by part number — descriptions repeat across sizes, numbers do not.\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 — 00638-93 in this case. inner diameter 40 mm, cross section 3 mm, material NBR 70 is what distinguishes this number from its neighbours in 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. Assembly grease matters — the wrong compound swells the seal and it fails early.\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 00638-93\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 40 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCross Section:\u003c\/em\u003e 3 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":53648931848458,"sku":"00638-93","price":21.0,"currency_code":"QAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/00638-93_9d2c49e4-d46d-4f84-b3b7-347c1528086f.png?v=1788872667","url":"https:\/\/inter-pace.com\/en-qa\/products\/ohlins-o-ring-40x3-nbr70-low-temp-00638-93","provider":"Inter-Pace","version":"1.0","type":"link"}