{"product_id":"6311-2rs","title":"Couplers \u0026 Bearing 6311-2RS Sealed Bearing","description":"\u003cp\u003eAs a veteran tech, I know you need a \u003cstrong\u003e6311-2RS Sealed Bearing\u003c\/strong\u003e that can handle the grit of a mechanical room without failing. This \u003cstrong\u003edeep groove ball bearing\u003c\/strong\u003e is a standard workhorse for \u003cstrong\u003eHVAC blower motors\u003c\/strong\u003e and heavy-duty \u003cstrong\u003eindustrial pump applications\u003c\/strong\u003e, featuring a 55mm bore, 120mm outer diameter, and a 29mm width. The \u003cstrong\u003edual rubber seals (2RS)\u003c\/strong\u003e provide a critical contact barrier, locking in the high-temperature Chevron SRI-2 grease while locking out the dust and moisture that kill open bearings. Designed to manage both heavy \u003cstrong\u003eradial and axial loads\u003c\/strong\u003e, this chrome steel component operates at \u003cstrong\u003elimiting speeds up to 3,800 RPM\u003c\/strong\u003e, making it ideal for the high-torque demands of \u003cstrong\u003eelectric motor repair\u003c\/strong\u003e. When you are swapping out a noisy unit, the \u003cstrong\u003e6311-2RS1\u003c\/strong\u003e or \u003cstrong\u003e6311-2NSE\u003c\/strong\u003e interchange ensures you are getting a precision part that drops right onto the shaft with the correct \u003cstrong\u003eC3 internal clearance\u003c\/strong\u003e for thermal expansion.\u003c\/p\u003e\n\n\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-Sided Rubber Seals:\u003c\/strong\u003e Provides superior \u003cstrong\u003egrease retention\u003c\/strong\u003e and protection against contaminants in harsh mechanical environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Load Capacity:\u003c\/strong\u003e Engineered for \u003cstrong\u003eheavy radial and axial loads\u003c\/strong\u003e, with a dynamic load rating up to 74.1 kN.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision Tolerance:\u003c\/strong\u003e Optimized for low noise and minimal vibration in \u003cstrong\u003ecommercial HVAC systems\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePre-Lubricated Design:\u003c\/strong\u003e Factory-packed with high-grade grease for immediate installation in \u003cstrong\u003epumps and conveyors\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cstrong\u003eCommon Questions:\u003c\/strong\u003e\n\u003cp\u003e\u003cstrong\u003eWhat equipment uses the 6311-2RS bearing?\u003c\/strong\u003e\u003cbr\u003e\nThis part is a common fit for large \u003cstrong\u003eelectric motors\u003c\/strong\u003e, centrifugal pumps, industrial fans, and agricultural machinery where an airtight seal is required to protect the raceways.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this in high-temperature applications?\u003c\/strong\u003e\u003cbr\u003e\nYes, the \u003cstrong\u003esynthetic rubber seals\u003c\/strong\u003e and specialized lubrication enable stable operation in ambient temperatures ranging from -30°C to +110°C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does 2RS compare to ZZ shielding?\u003c\/strong\u003e\u003cbr\u003e\nThe \u003cstrong\u003e2RS rubber seals\u003c\/strong\u003e offer better protection against liquid and fine particulates than metal shields (ZZ), making them the preferred choice for \u003cstrong\u003edirty or damp environments\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"Couplers \u0026 Bearing","offers":[{"title":"Default Title","offer_id":35648006092,"sku":"6311-2RS","price":53.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/products\/1_8ca03e3d-d44f-487b-9ba6-15ef76662333.png?v=1538002965","url":"https:\/\/www.gsistore.com\/products\/6311-2rs","provider":"GSIstore","version":"1.0","type":"link"}