{"product_id":"pgn-1638-zz-bearing-c0-pre-lubricated-chrome-steel-sealed-ball-bearing-1","title":"PGN 1638-ZZ Bearing - C0 Pre-Lubricated Chrome Steel Sealed Ball Bearing","description":"\u003cdiv align=\"left\" dir=\"ltr\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px dotted rgb(22, 51, 64); height: 166.719px;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 30.0537%; background-color: rgb(240, 240, 240);\"\u003e \u003ccol style=\"width: 20.0358%;\"\u003e \u003ccol style=\"width: 30.0537%; background-color: rgb(240, 240, 240);\"\u003e \u003ccol style=\"width: 19.8569%;\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 39.1797px;\"\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003e\u003cstrong\u003eMODEL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003e1638-ZZ\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003e\u003cstrong\u003eIN DIAMETER (BORE)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003e0.75 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1797px;\"\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003e\u003cstrong\u003eTYPE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003eMetal Shield\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003e\u003cstrong\u003eOUT. DIAMETER\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003e2 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1797px;\"\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003e\u003cstrong\u003eMATERIAL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003e100% Chrome Steel\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003e\u003cstrong\u003eRPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003e11.500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1797px;\"\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003e\u003cstrong\u003eCLEARANCE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003eC0 (Pre-Lubricated)\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003e\u003cstrong\u003eDYNAMIC LOAD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 39.1797px;\"\u003e\n\u003cspan data-sheets-root=\"1\"\u003e2428 \u003c\/span\u003elbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 10px;\"\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 10px;\"\u003e\u003cstrong\u003eWIDTH (THICKNESS)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 10px;\"\u003e0.5625 inch\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 10px;\"\u003e\u003cstrong\u003eSTATIC LOAD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px dotted rgb(22, 51, 64); text-align: center; vertical-align: middle; padding: 8px; height: 10px;\"\u003e\n\u003cspan data-sheets-root=\"1\"\u003e1000 \u003c\/span\u003elbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdetails\u003e\n\u003csummary class=\"pgn_readmore\"\u003eRead More\u003c\/summary\u003e\n\u003ch1 data-section-id=\"17k6bow\" data-start=\"4618\" data-end=\"4640\"\u003e1638-ZZ Ball Bearing\u003c\/h1\u003e\n\u003cp data-start=\"4642\" data-end=\"4871\"\u003eThe 1638-ZZ Ball Bearing is a deep groove ball bearing with double metal shields designed for applications requiring high rotational speed, low friction, and protection against external particles in industrial mechanical systems.\u003c\/p\u003e\n\u003cp data-start=\"4873\" data-end=\"5272\"\u003eManufactured from chrome steel and factory pre-lubricated, this model delivers smooth operation, operational stability, and dependable performance in continuous rotating applications. The ZZ metal shield configuration helps reduce dust and debris contamination without significantly increasing friction, making the bearing ideal for higher-speed applications.\u003c\/p\u003e\n\u003ch2 data-section-id=\"dalfq2\" data-start=\"5318\" data-end=\"5353\"\u003eWhat is the 1638-ZZ Ball Bearing\u003c\/h2\u003e\n\u003cp data-start=\"5355\" data-end=\"5485\"\u003eThe 1638-ZZ is a deep groove ball bearing designed to support radial loads and moderate axial loads with low operational friction.\u003c\/p\u003e\n\u003cp data-start=\"5487\" data-end=\"5745\"\u003eThe “ZZ” designation means the bearing features metal shields on both sides. Unlike 2RS rubber-sealed models, ZZ bearings typically provide lower rotational resistance and better performance in high-speed applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"5747\" data-end=\"5852\"\u003eAdditionally, this design helps protect internal components from light debris and moderate contamination.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1dnx0m1\" data-start=\"5854\" data-end=\"5890\"\u003eWhere the 1638-ZZ Bearing is Used\u003c\/h2\u003e\n\u003cp data-start=\"5892\" data-end=\"5967\"\u003eThe 1638-ZZ can be used in multiple industrial and mechanical applications.\u003c\/p\u003e\n\u003cp data-start=\"5969\" data-end=\"5997\"\u003eCommon applications include:\u003c\/p\u003e\n\u003cul data-start=\"5999\" data-end=\"6171\"\u003e\n\u003cli data-section-id=\"16r9s0j\" data-start=\"5999\" data-end=\"6016\"\u003eElectric motors\u003c\/li\u003e\n\u003cli data-section-id=\"d4k3ep\" data-start=\"6017\" data-end=\"6039\"\u003eIndustrial machinery\u003c\/li\u003e\n\u003cli data-section-id=\"1eg8h2z\" data-start=\"6040\" data-end=\"6064\"\u003eAgricultural equipment\u003c\/li\u003e\n\u003cli data-section-id=\"ks4s2z\" data-start=\"6065\" data-end=\"6083\"\u003eConveyor systems\u003c\/li\u003e\n\u003cli data-section-id=\"1lo480x\" data-start=\"6084\" data-end=\"6106\"\u003eAutomotive equipment\u003c\/li\u003e\n\u003cli data-section-id=\"19hdxdw\" data-start=\"6107\" data-end=\"6125\"\u003eIndustrial tools\u003c\/li\u003e\n\u003cli data-section-id=\"1r3j60\" data-start=\"6126\" data-end=\"6141\"\u003eCNC machinery\u003c\/li\u003e\n\u003cli data-section-id=\"1bji75y\" data-start=\"6142\" data-end=\"6171\"\u003eHigh-speed rotating systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"6173\" data-end=\"6334\"\u003eAdditionally, ZZ bearings are commonly used in applications requiring high rotational speed and low operational friction. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"8vuf53\" data-start=\"6336\" data-end=\"6375\"\u003eBenefits of the 1638-ZZ Ball Bearing\u003c\/h2\u003e\n\u003ch3 data-section-id=\"a9xkcv\" data-start=\"6377\" data-end=\"6406\"\u003eDouble metal shields (ZZ)\u003c\/h3\u003e\n\u003cp data-start=\"6408\" data-end=\"6563\"\u003eThe metal shields help reduce dust and debris contamination without significantly increasing rotational resistance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"j0ug9e\" data-start=\"6565\" data-end=\"6590\"\u003eHigh-speed capability\u003c\/h3\u003e\n\u003cp data-start=\"6592\" data-end=\"6738\"\u003eThis model is suitable for higher RPM applications due to the reduced friction generated by metal shields. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"ot1cz2\" data-start=\"6740\" data-end=\"6769\"\u003eChrome steel construction\u003c\/h3\u003e\n\u003cp data-start=\"6771\" data-end=\"6931\"\u003eChrome steel provides mechanical strength, durability, and consistent performance in continuous industrial applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1flcv0v\" data-start=\"6933\" data-end=\"6959\"\u003eFactory pre-lubricated\u003c\/h3\u003e\n\u003cp data-start=\"6961\" data-end=\"7103\"\u003eThe bearing comes pre-lubricated for easier installation and reduced initial maintenance requirements. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"gkpx26\" data-start=\"7105\" data-end=\"7139\"\u003eHow to Choose the Right Bearing\u003c\/h2\u003e\n\u003cp data-start=\"7141\" data-end=\"7200\"\u003eWhen selecting a ball bearing, it is important to consider:\u003c\/p\u003e\n\u003cul data-start=\"7202\" data-end=\"7322\"\u003e\n\u003cli data-section-id=\"pra9pv\" data-start=\"7202\" data-end=\"7221\"\u003eApplied load type\u003c\/li\u003e\n\u003cli data-section-id=\"1ebv6gm\" data-start=\"7222\" data-end=\"7240\"\u003eRotational speed\u003c\/li\u003e\n\u003cli data-section-id=\"7uj1el\" data-start=\"7241\" data-end=\"7270\"\u003eSeal or shield requirements\u003c\/li\u003e\n\u003cli data-section-id=\"1y2n4g0\" data-start=\"7271\" data-end=\"7294\"\u003eOperating environment\u003c\/li\u003e\n\u003cli data-section-id=\"19ho4u3\" data-start=\"7295\" data-end=\"7322\"\u003eDimensional compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"7324\" data-end=\"7452\"\u003eZZ bearings are typically recommended for less aggressive environments and applications prioritizing speed and reduced friction.\u003c\/p\u003e\n\u003ch2 data-section-id=\"ibh3nq\" data-start=\"7454\" data-end=\"7473\"\u003eMaintenance Tips\u003c\/h2\u003e\n\u003cp data-start=\"7475\" data-end=\"7576\"\u003eEven with shielded and pre-lubricated construction, some practices help preserve bearing performance:\u003c\/p\u003e\n\u003cul data-start=\"7578\" data-end=\"7729\"\u003e\n\u003cli data-section-id=\"opeue1\" data-start=\"7578\" data-end=\"7601\"\u003eCheck shaft alignment\u003c\/li\u003e\n\u003cli data-section-id=\"hzqfv9\" data-start=\"7602\" data-end=\"7629\"\u003eAvoid overload conditions\u003c\/li\u003e\n\u003cli data-section-id=\"11dww5z\" data-start=\"7630\" data-end=\"7659\"\u003eMonitor excessive vibration\u003c\/li\u003e\n\u003cli data-section-id=\"i1769z\" data-start=\"7660\" data-end=\"7698\"\u003eKeep the operating environment clean\u003c\/li\u003e\n\u003cli data-section-id=\"xtyu3f\" data-start=\"7699\" data-end=\"7729\"\u003ePerform periodic inspections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"7731\" data-end=\"7810\"\u003eThese practices help extend operational life and improve equipment reliability.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1aamqce\" data-start=\"7812\" data-end=\"7840\"\u003ePGN Bearings Product Line\u003c\/h2\u003e\n\u003cp data-start=\"7842\" data-end=\"8126\"\u003ePGN Bearings provides industrial solutions for rotating applications and mechanical movement systems. The product line includes ball bearings, pillow block bearings, roller chains, steel balls, and industrial components designed for dependable performance and operational reliability.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1hryhf7\" data-start=\"8128\" data-end=\"8134\"\u003eFAQ\u003c\/h2\u003e\n\u003ch3 data-section-id=\"1tm0got\" data-start=\"8136\" data-end=\"8171\"\u003eWhat does ZZ mean on a bearing?\u003c\/h3\u003e\n\u003cp data-start=\"8173\" data-end=\"8268\"\u003e“ZZ” means the bearing has metal shields on both sides. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"blp15e\" data-start=\"8270\" data-end=\"8325\"\u003eWhat is the difference between ZZ and 2RS bearings?\u003c\/h3\u003e\n\u003cp data-start=\"8327\" data-end=\"8532\"\u003eZZ bearings use metal shields and generally provide lower friction and higher speed capability, while 2RS bearings use rubber seals for improved moisture protection. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"ny9r6u\" data-start=\"8534\" data-end=\"8568\"\u003eIs the 1638-ZZ pre-lubricated?\u003c\/h3\u003e\n\u003cp data-start=\"8570\" data-end=\"8656\"\u003eYes. The bearing comes factory pre-lubricated. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"jfl8or\" data-start=\"8658\" data-end=\"8706\"\u003eCan this bearing be used in electric motors?\u003c\/h3\u003e\n\u003cp data-start=\"8708\" data-end=\"8835\"\u003eYes. The 1638-ZZ is commonly used in electric motors and rotating industrial equipment. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1c3ns3o\" data-start=\"8837\" data-end=\"8879\"\u003eWhat are the benefits of chrome steel?\u003c\/h3\u003e\n\u003cp data-start=\"8881\" data-end=\"9014\"\u003eChrome steel provides mechanical strength, durability, and dependable industrial performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/details\u003e","brand":"PGN Bearings","offers":[{"title":"Default Title","offer_id":51936559137081,"sku":"BB-1638-ZZ\/1","price":2.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0038\/9342\/8337\/files\/1638-ZZ.png?v=1771443911","url":"https:\/\/pgnbearings.com\/products\/pgn-1638-zz-bearing-c0-pre-lubricated-chrome-steel-sealed-ball-bearing-1","provider":"PGN","version":"1.0","type":"link"}