{"product_id":"ohlins-shaft-12-462-alu-21631-01","title":"Öhlins Shaft 12\/462 Alu – 21631-01","description":"\u003cp\u003eShaft 12\/462 Alu, Öhlins part number 21631-01. Chrome or nitride treatment is what lets the shaft run in a seal for thousands of kilometres.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eÖhlins part number 21631-01\u003c\/li\u003e\n\u003cli\u003eDiameter 12 mm\u003c\/li\u003e\n\u003cli\u003eLength 462 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\u003eÖhlins publishes 12 mm, 462 mm for 21631-01 — the dimensions are the identity of the part. Surface hardness is what lets the shaft survive thousands of cycles through a seal. Shaft straightness matters: a bent shaft drags in the seal head and destroys the seal within hours. Shafts are not shortened or extended; the length is the specification.\u003c\/p\u003e\u003ch2\u003eGenuine Service Part\u003c\/h2\u003e\u003cp\u003eThe part is identical to what Öhlins fits in production — same supplier, same specification. Öhlins lists this part under its own number in the service catalogue so a workshop can order exactly what it needs. We can supply the whole position from the drawing rather than the single piece if that is easier. For a full rebuild, the seal kit plus the wear parts is usually the sensible order.\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 — 21631-01 in this case. diameter 12 mm, length 462 mm is what distinguishes this number from its neighbours in the range. Shaft diameter sets the displaced volume, which is why it is part of the damper's specification. A shaft is measured by diameter and overall length, and both are specific to the unit it belongs to.\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 21631-01\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Damper Shafts\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDiameter:\u003c\/em\u003e 12 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eLength:\u003c\/em\u003e 462 mm\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":53652635877642,"sku":"21631-01","price":145.13,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21631-01_c80223f4-d29f-4bcb-a349-1fee8a1686f0.png?v=1788879775","url":"https:\/\/inter-pace.com\/products\/ohlins-shaft-12-462-alu-21631-01","provider":"Inter-Pace","version":"1.0","type":"link"}