{"product_id":"r12-zz-ball-bearing","title":"R12-ZZ Ball Bearing - C3 Clearance - 3\/4\"x1-5\/8\"x7\/16\"","description":"\u003cdiv align=\"left\" dir=\"ltr\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px dotted #163340;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 30%; background-color: #f0f0f0;\"\u003e \u003ccol style=\"width: 20%;\"\u003e \u003ccol style=\"width: 30%; background-color: #f0f0f0;\"\u003e \u003ccol style=\"width: 20%;\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e\u003cstrong\u003eMODEL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003eR12-ZZ\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e\u003cstrong\u003eIN DIAMETER (BORE)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e\u003cstrong\u003eTYPE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003eMetal Shield on both sides\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e\u003cstrong\u003eOUT. DIAMETER\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e1-5\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e\u003cstrong\u003eMATERIAL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e100% Chrome Steel\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e\u003cstrong\u003eRPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e17,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e\u003cstrong\u003eCLEARANCE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003eC3 (Pre-Lubricated)\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e\u003cstrong\u003eDYNAMIC LOAD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e1,630 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e\u003cstrong\u003eWIDTH (THICKNESS)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e7\/16\"\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e\u003cstrong\u003eSTATIC LOAD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted #163340; text-align: center; vertical-align: middle; padding: 8px;\"\u003e1,000 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdetails\u003e\n\u003csummary class=\"pgn_readmore\"\u003eRead More\u003c\/summary\u003e\n\u003ch1 data-section-id=\"l0jdql\" data-start=\"3921\" data-end=\"3942\"\u003eR12-ZZ Ball Bearing\u003c\/h1\u003e\n\u003cp data-start=\"3944\" data-end=\"4160\"\u003eThe R12-ZZ Ball Bearing is an imperial deep groove ball bearing engineered for industrial and mechanical applications requiring high rotational speed, low rolling resistance, and dependable continuous-duty operation.\u003c\/p\u003e\n\u003cp data-start=\"4162\" data-end=\"4554\"\u003eEquipped with double metal shields (ZZ), this bearing helps reduce entry of light particles while maintaining lower rolling resistance compared to rubber-sealed models. Manufactured from chrome steel and supplied factory pre-lubricated, the bearing is widely used in electric motors, industrial fans, rotating equipment, and compact mechanical systems.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1337bzm\" data-start=\"4600\" data-end=\"4630\"\u003eApplications for the R12-ZZ\u003c\/h2\u003e\n\u003cp data-start=\"4632\" data-end=\"4727\"\u003eThe R12-ZZ is commonly used in industrial equipment and rotating mechanical systems, including:\u003c\/p\u003e\n\u003cul data-start=\"4729\" data-end=\"4900\"\u003e\n\u003cli data-section-id=\"16r9s0j\" data-start=\"4729\" data-end=\"4746\"\u003eElectric motors\u003c\/li\u003e\n\u003cli data-section-id=\"1rsh5f9\" data-start=\"4747\" data-end=\"4764\"\u003eIndustrial fans\u003c\/li\u003e\n\u003cli data-section-id=\"et85by\" data-start=\"4765\" data-end=\"4781\"\u003eHVAC equipment\u003c\/li\u003e\n\u003cli data-section-id=\"vv4kng\" data-start=\"4782\" data-end=\"4800\"\u003eLight-duty pumps\u003c\/li\u003e\n\u003cli data-section-id=\"19hdxdw\" data-start=\"4801\" data-end=\"4819\"\u003eIndustrial tools\u003c\/li\u003e\n\u003cli data-section-id=\"ks4s2z\" data-start=\"4820\" data-end=\"4838\"\u003eConveyor systems\u003c\/li\u003e\n\u003cli data-section-id=\"z6u9ow\" data-start=\"4839\" data-end=\"4860\"\u003eAutomated machinery\u003c\/li\u003e\n\u003cli data-section-id=\"pho7hl\" data-start=\"4861\" data-end=\"4900\"\u003eImperial-size industrial applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4902\" data-end=\"5040\"\u003eR series bearings are commonly used in North American equipment and inch-based industrial systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"191nj09\" data-start=\"5042\" data-end=\"5080\"\u003eFeatures of the R12-ZZ Ball Bearing\u003c\/h2\u003e\n\u003ch3 data-section-id=\"165j0fi\" data-start=\"5082\" data-end=\"5106\"\u003eDouble metal shields\u003c\/h3\u003e\n\u003cp data-start=\"5108\" data-end=\"5270\"\u003eMetal shields help reduce entry of light particles while supporting lower operational friction in high-speed applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1oduvh2\" data-start=\"5272\" data-end=\"5306\"\u003eExcellent high-RPM performance\u003c\/h3\u003e\n\u003cp data-start=\"5308\" data-end=\"5442\"\u003eDeep groove geometry supports stable and efficient operation in continuous high-speed systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"l2u5ja\" data-start=\"5444\" data-end=\"5474\"\u003eSmooth and quiet operation\u003c\/h3\u003e\n\u003cp data-start=\"5476\" data-end=\"5603\"\u003eThis bearing delivers consistent rotation, reduced vibration, and dependable performance in continuous industrial applications.\u003c\/p\u003e\n\u003ch3 data-section-id=\"ot1cz2\" data-start=\"5605\" data-end=\"5634\"\u003eChrome steel construction\u003c\/h3\u003e\n\u003cp data-start=\"5636\" data-end=\"5819\"\u003eManufactured from hardened chrome steel to provide dependable mechanical strength and long service life in light and medium industrial systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1b81ed2\" data-start=\"5821\" data-end=\"5857\"\u003eVersatile imperial configuration\u003c\/h3\u003e\n\u003cp data-start=\"5859\" data-end=\"5986\"\u003eThe imperial format simplifies maintenance and replacement in U.S.-manufactured equipment and traditional industrial machinery.\u003c\/p\u003e\n\u003ch2 data-section-id=\"uv4iyk\" data-start=\"5988\" data-end=\"6015\"\u003eWhen to Use a ZZ Bearing\u003c\/h2\u003e\n\u003cp data-start=\"6017\" data-end=\"6058\"\u003eZZ bearings are commonly recommended for:\u003c\/p\u003e\n\u003cul data-start=\"6060\" data-end=\"6175\"\u003e\n\u003cli data-section-id=\"1n4mw5i\" data-start=\"6060\" data-end=\"6082\"\u003eHigh-speed equipment\u003c\/li\u003e\n\u003cli data-section-id=\"17su1sx\" data-start=\"6083\" data-end=\"6101\"\u003eDry environments\u003c\/li\u003e\n\u003cli data-section-id=\"125m5ml\" data-start=\"6102\" data-end=\"6132\"\u003eContinuous-duty applications\u003c\/li\u003e\n\u003cli data-section-id=\"23w8xl\" data-start=\"6133\" data-end=\"6150\"\u003eCompact systems\u003c\/li\u003e\n\u003cli data-section-id=\"ujstzx\" data-start=\"6151\" data-end=\"6175\"\u003eLow-friction machinery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"6177\" data-end=\"6295\"\u003e2RS bearings are generally selected when stronger sealing protection is required against moisture and external debris.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1avjuhm\" data-start=\"6297\" data-end=\"6321\"\u003eUsage Recommendations\u003c\/h2\u003e\n\u003cp data-start=\"6323\" data-end=\"6355\"\u003eTo improve bearing service life:\u003c\/p\u003e\n\u003cul data-start=\"6357\" data-end=\"6501\"\u003e\n\u003cli data-section-id=\"opeue1\" data-start=\"6357\" data-end=\"6380\"\u003eCheck shaft alignment\u003c\/li\u003e\n\u003cli data-section-id=\"sc78i5\" data-start=\"6381\" data-end=\"6406\"\u003eAvoid excessive impacts\u003c\/li\u003e\n\u003cli data-section-id=\"15tcap9\" data-start=\"6407\" data-end=\"6435\"\u003eControl abnormal vibration\u003c\/li\u003e\n\u003cli data-section-id=\"1fbqfg5\" data-start=\"6436\" data-end=\"6467\"\u003eMonitor operating temperature\u003c\/li\u003e\n\u003cli data-section-id=\"1f8n84x\" data-start=\"6468\" data-end=\"6501\"\u003eUse proper installation methods\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1aamqce\" data-start=\"6503\" data-end=\"6531\"\u003ePGN Bearings Product Line\u003c\/h2\u003e\n\u003cp data-start=\"6533\" data-end=\"6840\"\u003ePGN Bearings supplies industrial components for rotating systems and mechanical power transmission applications. The product line includes ball bearings, roller chains, pillow block bearings, flanged bearings, steel balls, and additional products engineered for dependable continuous industrial performance.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1hryhf7\" data-start=\"6842\" data-end=\"6848\"\u003eFAQ\u003c\/h2\u003e\n\u003ch3 data-section-id=\"1tm0got\" data-start=\"6850\" data-end=\"6885\"\u003eWhat does ZZ mean on a bearing?\u003c\/h3\u003e\n\u003cp data-start=\"6887\" data-end=\"6985\"\u003e“ZZ” indicates metal shields on both sides of the bearing. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"mcvcgo\" data-start=\"6987\" data-end=\"7027\"\u003eDoes the R12-ZZ come pre-lubricated?\u003c\/h3\u003e\n\u003cp data-start=\"7029\" data-end=\"7115\"\u003eYes. The bearing comes factory pre-lubricated. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"37b5ka\" data-start=\"7117\" data-end=\"7171\"\u003eIs this bearing suitable for high-speed operation?\u003c\/h3\u003e\n\u003cp data-start=\"7173\" data-end=\"7297\"\u003eYes. The R12-ZZ is designed for high-speed industrial and low-friction applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"jfl8or\" data-start=\"7299\" data-end=\"7347\"\u003eCan this bearing be used in electric motors?\u003c\/h3\u003e\n\u003cp data-start=\"7349\" data-end=\"7488\"\u003eYes. The R12-ZZ is widely used in electric motors, industrial fans, and compact mechanical systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"13islm7\" data-start=\"7490\" data-end=\"7533\"\u003eWhat is the advantage of metal shields?\u003c\/h3\u003e\n\u003cp data-start=\"7535\" data-end=\"7654\"\u003eMetal shields help reduce friction and improve performance in high-RPM systems.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"PGN Bearings","offers":[{"title":"Default Title","offer_id":20475675312241,"sku":"BB-R12-ZZ\/1","price":2.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0038\/9342\/8337\/files\/r12-zz_324da2c0-702f-44ca-9112-6e45d311d203.jpg?v=1750945620","url":"https:\/\/pgnbearings.com\/products\/r12-zz-ball-bearing","provider":"PGN","version":"1.0","type":"link"}