{"product_id":"irr-5-1-2-1","title":"IRR-5-1\/2-1 Smith Bearing Inner Ring, 5.5000\" Bore Dia., 2.515\" W","description":"\u003cul\u003e \u003cli\u003e \u003cstrong\u003eBore Diameter:\u003c\/strong\u003e 5 1\/2 in\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 6.498 in\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eOverall Width:\u003c\/strong\u003e 2.515 in\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eRing Material:\u003c\/strong\u003e Alloy Steel\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eSystem of Measurement:\u003c\/strong\u003e Inch\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eBore Diameter Tolerance:\u003c\/strong\u003e +0.0000\/-0.001 in\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e \u003ctr\u003e \u003ctd\u003ePart Number\u003c\/td\u003e \u003ctd\u003eIRR-5-1\/2-1\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eBrand\u003c\/td\u003e \u003ctd\u003eSmith Bearing\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eItem\u003c\/td\u003e \u003ctd\u003eNeedle Roller Bearing Inner Ring\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eBore Diameter\u003c\/td\u003e \u003ctd\u003e5 1\/2 in\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eOutside Diameter\u003c\/td\u003e \u003ctd\u003e6.498 in\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eOverall Width\u003c\/td\u003e \u003ctd\u003e2.515 in\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eRing Material\u003c\/td\u003e \u003ctd\u003eAlloy Steel\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eSystem of Measurement\u003c\/td\u003e \u003ctd\u003eInch\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eBore Diameter Tolerance\u003c\/td\u003e \u003ctd\u003e+0.0000\/-0.001 in\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFinish\u003c\/td\u003e \u003ctd\u003eChrome Plated\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eLubrication Openings\u003c\/td\u003e \u003ctd\u003eOil Holes\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eOutside Diameter Tolerance\u003c\/td\u003e \u003ctd\u003e+0.000\/-0.001 in\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eRing Material Grade\u003c\/td\u003e \u003ctd\u003eAISI 52100\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eStandards\u003c\/td\u003e \u003ctd\u003eAS 9001, ISO Certified 9001\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eMil-B-3990 (SAE as\u003c\/td\u003e \u003ctd\u003e39901)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eSmith Bearing IRR-5-1\/2-1 is a needle roller bearing inner ring made from AISI 52100 alloy steel with a chrome plated finish. It has a bore diameter of 5 1\/2 in, an outside diameter of 6.498 in, and an overall width of 2.515 in. The ring includes oil holes and has bore and outside diameter tolerances of +0.0000\/-0.001 in and +0.000\/-0.001 in respectively.\u003c\/p\u003e\u003cp\u003eConfirm the part number against your existing unit or equipment before ordering to ensure correct fit.\u003c\/p\u003e","brand":"Smith Bearing","offers":[{"title":"Default Title","offer_id":67904619938005,"sku":"IRR-5-1\/2-1","price":314.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/9091\/2213\/files\/Z1x3B_pcpIx_c8acb5c3-fc47-441b-a31b-1dfe320a27a9.jpg?v=1792784416","url":"https:\/\/proreplacementparts.com\/products\/irr-5-1-2-1","provider":"Pro Replacement Parts","version":"1.0","type":"link"}