{"product_id":"qty-1-new-for-ntn-eccentric-bearing-612-5159-ysx","title":"New NTN Eccentric Bearing 612 5159 YSX for Reliable Performance","description":"\u003cdiv class=\"koeed-container\" style=\"width:100%;color:#333;line-height:1.7;\"\u003e\n\n  \u003cstyle\u003e\n    .koeed-container h2,\n    .koeed-container h3{\n      color:#16c8c8;\n      margin-top:32px;\n      margin-bottom:14px;\n    }\n\n    .koeed-container table{\n      width:100%;\n      border-collapse:collapse;\n    }\n\n    .koeed-container th,\n    .koeed-container td{\n      border:1px solid #eeeeee;\n      padding:10px;\n      text-align:left;\n      vertical-align:top;\n    }\n\n    .koeed-container tr:nth-child(odd){\n      background:#f4fcfc;\n    }\n\n    .koeed-container tr:nth-child(even){\n      background:#fafafa;\n    }\n\n    .koeed-highlight{\n      color:#16c8c8;\n      font-weight:bold;\n    }\n\n    .koeed-note{\n      background:#f4fcfc;\n      border-left:4px solid #16c8c8;\n      padding:14px;\n      margin-top:18px;\n    }\n\n    .koeed-list li{\n      margin-bottom:8px;\n    }\n  \u003c\/style\u003e\n\n  \u003ch2\u003eEngineer's Quick Brief\u003c\/h2\u003e\n\n  \u003cul class=\"koeed-list\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNTN 612 5159 YSX\u003c\/strong\u003e is a specialized \u003cstrong\u003eeccentric roller bearing\u003c\/strong\u003e commonly used in \u003cstrong\u003ecycloidal gear reducers\u003c\/strong\u003e, precision transmission assemblies, and industrial reduction systems.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003e22 × 58 × 32 mm\u003c\/strong\u003e dimensional architecture supports compact high-load transmission mechanisms with stable eccentric motion and reduced vibration.\u003c\/li\u003e\n\n    \u003cli\u003eDesigned for applications requiring \u003cstrong\u003ehigh radial load capacity\u003c\/strong\u003e, accurate eccentric rotation, and long operational durability in heavy-duty industrial environments.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cdiv class=\"koeed-note\"\u003e\n    The NTN 612 5159 YSX eccentric bearing is widely associated with cyclo drive systems where precise eccentric motion is critical for torque transmission efficiency and low-noise operation.\n  \u003c\/div\u003e\n\n  \u003ch2\u003eSEO Introduction\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The \u003cstrong\u003eNTN 612 5159 YSX Eccentric Bearing\u003c\/strong\u003e is an industrial-grade eccentric roller bearing engineered for use in \u003cstrong\u003ecycloidal reducers\u003c\/strong\u003e, gear transmission assemblies, and compact heavy-load rotational systems. Featuring a standard dimensional profile of \u003cstrong\u003e22 mm bore × 58 mm outer diameter × 32 mm width\u003c\/strong\u003e, the bearing supports stable eccentric motion under demanding industrial operating conditions.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Commonly referenced in searches related to \u003cstrong\u003ecyclo drive eccentric bearings\u003c\/strong\u003e, \u003cstrong\u003eindustrial gearbox bearings\u003c\/strong\u003e, \u003cstrong\u003eeccentric roller bearings\u003c\/strong\u003e, \u003cstrong\u003espeed reducer maintenance\u003c\/strong\u003e, and \u003cstrong\u003egear reducer replacement bearings\u003c\/strong\u003e, the NTN 612 5159 YSX is widely utilized in automated machinery, heavy industrial drives, and precision transmission systems.\n  \u003c\/p\u003e\n\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n  \u003cdiv style=\"overflow-x:auto;\"\u003e\n    \u003ctable\u003e\n      \u003ctr\u003e\n        \u003cth\u003eParameter\u003c\/th\u003e\n        \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eManufacturer\u003c\/td\u003e\n        \u003ctd\u003eNTN\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eModel\u003c\/td\u003e\n        \u003ctd\u003e612 5159 YSX\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eBearing Type\u003c\/td\u003e\n        \u003ctd\u003eEccentric Roller Bearing\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eStructure\u003c\/td\u003e\n        \u003ctd\u003eCylindrical Roller \/ Double Row Eccentric Configuration\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eInner Diameter (d)\u003c\/td\u003e\n        \u003ctd\u003e22 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eOuter Diameter (D)\u003c\/td\u003e\n        \u003ctd\u003e58 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eWidth (B)\u003c\/td\u003e\n        \u003ctd\u003e32 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eApproximate Weight\u003c\/td\u003e\n        \u003ctd\u003e0.6 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eRolling Element Type\u003c\/td\u003e\n        \u003ctd\u003eRoller\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003ePrecision Grades\u003c\/td\u003e\n        \u003ctd\u003eP0 \/ P5 \/ P6 variants depending on supplier configuration\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eCage Material\u003c\/td\u003e\n        \u003ctd\u003eSteel or engineered polymer cage depending on production version\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eBearing Material\u003c\/td\u003e\n        \u003ctd\u003eChrome Bearing Steel \/ GCr15\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eSeal Configuration\u003c\/td\u003e\n        \u003ctd\u003eOpen Type\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eTypical Lubrication\u003c\/td\u003e\n        \u003ctd\u003eGrease Lubricated\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eOperating Function\u003c\/td\u003e\n        \u003ctd\u003eEccentric rotational motion transmission\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eTypical Operating Environment\u003c\/td\u003e\n        \u003ctd\u003eIndustrial reducers, cycloidal gear drives, automated transmission systems\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eAssociated Mechanism\u003c\/td\u003e\n        \u003ctd\u003eCycloidal Speed Reducer \/ Cyclo Drive\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eMounting Orientation\u003c\/td\u003e\n        \u003ctd\u003eShaft eccentric mounting arrangement\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eLoad Characteristics\u003c\/td\u003e\n        \u003ctd\u003eHigh radial load support with eccentric displacement capability\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eNoise Characteristics\u003c\/td\u003e\n        \u003ctd\u003eLow vibration and stable rotational motion when properly aligned\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eInterchange References\u003c\/td\u003e\n        \u003ctd\u003e612 5159 YSX \/ 6125159YSX\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eApplication Matrix\u003c\/h2\u003e\n\n  \u003cdiv style=\"overflow-x:auto;\"\u003e\n    \u003ctable\u003e\n      \u003ctr\u003e\n        \u003cth\u003eIndustry\u003c\/th\u003e\n        \u003cth\u003eApplication\u003c\/th\u003e\n        \u003cth\u003eEngineering Value\u003c\/th\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eIndustrial Automation\u003c\/td\u003e\n        \u003ctd\u003eCycloidal speed reducers\u003c\/td\u003e\n        \u003ctd\u003eProvides accurate eccentric rotation and torque transmission stability\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003ePackaging Machinery\u003c\/td\u003e\n        \u003ctd\u003eServo reduction assemblies\u003c\/td\u003e\n        \u003ctd\u003eSupports compact high-load motion systems with reduced backlash\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eRobotics\u003c\/td\u003e\n        \u003ctd\u003ePrecision reduction mechanisms\u003c\/td\u003e\n        \u003ctd\u003eImproves rotational consistency and vibration control\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eMaterial Handling\u003c\/td\u003e\n        \u003ctd\u003eHeavy-duty conveyor reducers\u003c\/td\u003e\n        \u003ctd\u003eHandles continuous radial loading under repetitive cycles\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eMining \u0026amp; Heavy Industry\u003c\/td\u003e\n        \u003ctd\u003eGearbox transmission systems\u003c\/td\u003e\n        \u003ctd\u003eEnhances durability in harsh operating environments\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eMachine Tools\u003c\/td\u003e\n        \u003ctd\u003ePrecision drive systems\u003c\/td\u003e\n        \u003ctd\u003eMaintains stable eccentric motion at controlled rotational speeds\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\n  \u003ch3\u003eWhat is the primary function of the NTN 612 5159 YSX bearing?\u003c\/h3\u003e\n\n  \u003cp\u003e\n    This bearing generates controlled eccentric rotational motion inside cycloidal or reduction drive systems. It converts rotational shaft movement into eccentric displacement required by cyclo gear mechanisms.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhat are common signs of eccentric bearing wear?\u003c\/h3\u003e\n\n  \u003cul class=\"koeed-list\"\u003e\n    \u003cli\u003eAbnormal vibration during reducer operation\u003c\/li\u003e\n    \u003cli\u003eIncreased mechanical noise\u003c\/li\u003e\n    \u003cli\u003eExcessive heat generation\u003c\/li\u003e\n    \u003cli\u003eIrregular rotational motion\u003c\/li\u003e\n    \u003cli\u003eLubrication leakage or contamination\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCan the 612 5159 YSX be used in standard radial bearing applications?\u003c\/h3\u003e\n\n  \u003cp\u003e\n    No. This bearing is specifically designed for eccentric motion systems. Standard radial bearing substitution may cause severe misalignment or transmission failure.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhat lubrication method is recommended?\u003c\/h3\u003e\n\n  \u003cp\u003e\n    High-quality industrial bearing grease suitable for heavy radial loads and continuous operation is typically recommended. Lubrication intervals depend on reducer operating temperature and duty cycle.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhy is precise alignment important during installation?\u003c\/h3\u003e\n\n  \u003cp\u003e\n    Eccentric bearings operate under intentional offset geometry. Improper installation alignment can introduce excessive vibration, cage stress, and premature roller wear.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhich equipment commonly uses this bearing type?\u003c\/h3\u003e\n\n  \u003cp\u003e\n    Cycloidal gear reducers, compact industrial speed reducers, robotic transmission systems, and high-torque reduction assemblies commonly utilize this eccentric bearing architecture.\n  \u003c\/p\u003e\n\n  \u003ch2\u003eCross-Reference Guide\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The \u003cstrong\u003e612 5159 YSX\u003c\/strong\u003e eccentric bearing belongs to a broader family of cycloidal reducer eccentric bearings commonly found in industrial gear reduction systems.\n  \u003c\/p\u003e\n\n  \u003cdiv style=\"overflow-x:auto;\"\u003e\n    \u003ctable\u003e\n      \u003ctr\u003e\n        \u003cth\u003eRelated Model\u003c\/th\u003e\n        \u003cth\u003eType\u003c\/th\u003e\n        \u003cth\u003eTypical Size Group\u003c\/th\u003e\n        \u003cth\u003eApplication Relationship\u003c\/th\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003e612 2529 YSX\u003c\/td\u003e\n        \u003ctd\u003eEccentric Bearing\u003c\/td\u003e\n        \u003ctd\u003e22 × 58 × 32 mm\u003c\/td\u003e\n        \u003ctd\u003eSimilar cyclo drive configuration class\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003e612 43 YSX\u003c\/td\u003e\n        \u003ctd\u003eEccentric Bearing\u003c\/td\u003e\n        \u003ctd\u003e22 × 58 × 32 mm\u003c\/td\u003e\n        \u003ctd\u003eRelated reducer architecture family\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003e612 7187 YSX\u003c\/td\u003e\n        \u003ctd\u003eEccentric Bearing\u003c\/td\u003e\n        \u003ctd\u003e22 × 58 × 32 mm\u003c\/td\u003e\n        \u003ctd\u003eIndustrial cycloidal gearbox interchange family\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003e614 06-11 YSX\u003c\/td\u003e\n        \u003ctd\u003eEccentric Bearing\u003c\/td\u003e\n        \u003ctd\u003e25 × 68.5 × 42 mm\u003c\/td\u003e\n        \u003ctd\u003eLarger reducer platform\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003e614 43-59 YSX\u003c\/td\u003e\n        \u003ctd\u003eEccentric Bearing\u003c\/td\u003e\n        \u003ctd\u003e25 × 68.5 × 42 mm\u003c\/td\u003e\n        \u003ctd\u003eHeavy-duty reduction systems\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"koeed-note\"\u003e\n    Cross-reference suitability depends on reducer manufacturer geometry, eccentric offset values, shaft configuration, and gearbox internal clearances. Always verify exact dimensional and application compatibility before replacement.\n  \u003c\/div\u003e\n\n  \u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\":\"https:\/\/schema.org\",\n    \"@type\":\"FAQPage\",\n    \"mainEntity\":[\n      {\n        \"@type\":\"Question\",\n        \"name\":\"What is the primary function of the NTN 612 5159 YSX bearing?\",\n        \"acceptedAnswer\":{\n          \"@type\":\"Answer\",\n          \"text\":\"The NTN 612 5159 YSX eccentric bearing generates controlled eccentric rotational motion inside cycloidal and reduction drive systems.\"\n        }\n      },\n      {\n        \"@type\":\"Question\",\n        \"name\":\"What are common signs of eccentric bearing wear?\",\n        \"acceptedAnswer\":{\n          \"@type\":\"Answer\",\n          \"text\":\"Common signs include vibration, abnormal noise, heat generation, rotational instability, and lubrication contamination.\"\n        }\n      },\n      {\n        \"@type\":\"Question\",\n        \"name\":\"Can the 612 5159 YSX be used in standard radial bearing applications?\",\n        \"acceptedAnswer\":{\n          \"@type\":\"Answer\",\n          \"text\":\"No. The 612 5159 YSX is specifically designed for eccentric rotational systems and should not be substituted with standard radial bearings.\"\n        }\n      },\n      {\n        \"@type\":\"Question\",\n        \"name\":\"What lubrication method is recommended?\",\n        \"acceptedAnswer\":{\n          \"@type\":\"Answer\",\n          \"text\":\"Industrial-grade grease suitable for high radial load and continuous operation is typically recommended.\"\n        }\n      },\n      {\n        \"@type\":\"Question\",\n        \"name\":\"Why is precise alignment important during installation?\",\n        \"acceptedAnswer\":{\n          \"@type\":\"Answer\",\n          \"text\":\"Improper alignment can introduce excessive vibration, roller stress, and premature bearing failure.\"\n        }\n      },\n      {\n        \"@type\":\"Question\",\n        \"name\":\"Which equipment commonly uses this bearing type?\",\n        \"acceptedAnswer\":{\n          \"@type\":\"Answer\",\n          \"text\":\"Cycloidal reducers, industrial speed reducers, robotic transmission systems, and compact high-torque gearboxes commonly use this eccentric bearing type.\"\n        }\n      }\n    ]\n  }\n  \u003c\/script\u003e\n\n\u003c\/div\u003e","brand":"NTN","offers":[{"title":"Default Title","offer_id":43934369972409,"sku":"305199478544","price":285.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/8476\/7929\/files\/New_NTN_Eccentric_Bearing_612_5159_YSX_for_Reliable_Performance___NTN__1.webp?v=1779639254","url":"https:\/\/koeed.com\/cs\/products\/qty-1-new-for-ntn-eccentric-bearing-612-5159-ysx","provider":"KOEED","version":"1.0","type":"link"}