{"product_id":"mr85-zz-bearings","title":"MR85-ZZ Bearings","description":"\u003cp\u003e\u003cstrong\u003e10-pack of MR85-ZZ miniature shielded ball bearings.\u003c\/strong\u003e These are the compact \u003cstrong\u003e5 mm ID × 8 mm OD × 2.5 mm width\u003c\/strong\u003e deep-groove bearings used anywhere a small 5 mm shaft needs low-friction support in a tight printed assembly.\u003c\/p\u003e\n\u003ch3\u003eWhy use MR85-ZZ here\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrect miniature size:\u003c\/strong\u003e MR85-ZZ \/ MR85ZZ format, also cross-referenced as L850ZZ or R-850ZZ by bearing suppliers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal shields on both sides:\u003c\/strong\u003e ZZ shields help keep dust and printed-plastic debris out while staying lower-drag than contact rubber seals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChrome-steel construction:\u003c\/strong\u003e supplier datasheets list SAE 52100 chrome-steel rings and balls with a pressed-steel cage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-lubricated:\u003c\/strong\u003e ready to install for light-duty printer, robotics, and hobby motion assemblies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 10 bearings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesignation:\u003c\/strong\u003e MR85-ZZ \/ MR85ZZ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore \/ inner diameter:\u003c\/strong\u003e 5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter diameter:\u003c\/strong\u003e 8 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 2.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e metal shielded both sides (ZZ \/ 2Z)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e SAE 52100 chrome steel rings and balls; pressed-steel cage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical reference speed:\u003c\/strong\u003e 53,000 rpm with adequate lubrication, per SMB Bearings MR85ZZ datasheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse these when your BOM calls for \u003cstrong\u003eMR85-ZZ, MR85ZZ, L850ZZ, or R-850ZZ\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eKeep a spare pack with small-format printer builds; the live \u003ca href=\"https:\/\/dfh.fm\/products\/voron-v0-r2-upgrade-kit\"\u003eVoron V0.2r2 Upgrade Kit\u003c\/a\u003e listing calls out one MR85zz bearing.\u003c\/li\u003e\n\u003cli\u003eIf you are rebuilding leftover ERCF v1\/v1.1 hardware, cross-check the bearing callouts against the \u003ca href=\"https:\/\/dfh.fm\/products\/rabbit-poop\"\u003eRabbit Poop\u003c\/a\u003e bundle notes before ordering extras.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat it is not\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNot a rubber-sealed 2RS bearing; choose 2RS only where your application needs contact seals over lower drag.\u003c\/li\u003e\n\u003cli\u003eNot a flanged bearing and not a 623-size bearing. For other miniature bearing formats, compare the bore, OD, and width before substituting.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dfh.fm","offers":[{"title":"Default Title","offer_id":42635860148446,"sku":"8636811686","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/9767\/0313\/products\/Untitled6.png?v=1648864704","url":"https:\/\/formosissima.myshopify.com\/products\/mr85-zz-bearings","provider":"dfh.fm","version":"1.0","type":"link"}