{"product_id":"a-wk28-ai-woodruff-keys-1-4-x-1-1-2","title":"A-WK28-AI Woodruff Keys, 1\/4 x 1-1\/2","description":"\u003ch3\u003eOne New Aftermarket Replacement Woodruff Key - 1\/4\" x 1-1\/2\" (A\u0026amp;I Products WK28)\u003c\/h3\u003e\u003cp\u003eThis Woodruff key is a semi-circular, half-moon shaped shaft key used to lock rotating components - such as pulleys, sprockets, gears, and impellers - onto a shaft, preventing independent rotation. It seats in a semi-circular keyway cut into the shaft, with the flat top face engaging the mating hub or bore keyway to transfer torque. Woodruff keys also serve as a fail-safe, designed to shear under overload before more expensive components are damaged. This key meets ANSI B17.2 \/ SAE J502 dimensional standards and is widely used across agricultural equipment, lawn and garden machinery, small engines, and general industrial power transmission applications.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWidth: 1\/4 in.\u003c\/li\u003e\n\u003cli\u003eLength (Nominal Diameter): 1-1\/2 in.\u003c\/li\u003e\n\u003cli\u003eStyle: Semi-circular (Woodruff \/ half-moon)\u003c\/li\u003e\n\u003cli\u003eStandard: ANSI B17.2 \/ SAE J502\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Applications\u003c\/h4\u003e\u003cp\u003eUniversal fitment. Suitable for any shaft and hub assembly using a standard 1\/4 in. x 1-1\/2 in. Woodruff keyway, including agricultural equipment, lawn and garden tractors, small engines, and general power transmission machinery. Verify keyway dimensions before ordering.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003eA-WK28-AI, WK28\u003c\/p\u003e\u003cp\u003eNew aftermarket replacement part - not remanufactured, not used.\u003c\/p\u003e","brand":"Reliable Aftermarket Parts, Inc®","offers":[{"title":"Default Title","offer_id":41989263229011,"sku":"A-WK28-AI","price":9.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/A-WK28-AI_01.jpg?v=1732461966","url":"https:\/\/www.reliableaftermarketparts.co.uk\/products\/a-wk28-ai-woodruff-keys-1-4-x-1-1-2","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}