{"product_id":"skf-61904-thin-section-ball-bearing-20mm-bore-open","title":"Skf 61904 Thin Section Ball Bearing 20mm Bore Open","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SKF 61904 is a single-row, open-style thin section ball bearing designed for applications where radial space is limited and precise rotational performance is required. With a 20 mm bore diameter, 37 mm outside diameter, and 9 mm overall width, this bearing fits compact shaft and housing configurations common in light industrial machinery, HVAC blower assemblies, and rotating equipment. It carries a dynamic load capacity of 1,430 pounds and a static load capacity of 821 pounds, with a maximum rated speed of 26,000 RPM. The steel cage construction and open design make it well suited for clean, lubricated environments where external sealing is handled by the application housing.\u003c\/p\u003e\u003cp\u003eThe SKF 61904 is used in a wide range of mechanical applications requiring a compact, high-speed radial bearing. Typical installations include electric motors, small pumps, fans, and precision rotating assemblies in both residential and light commercial equipment. The open configuration allows for shop-applied lubrication at install time and is appropriate where the bearing operates in a controlled or enclosed housing that provides adequate contamination protection. Installers working with rotating equipment in HVAC, pump, or general mechanical service will find this bearing a standard dimensional replacement in the 61904 series.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e20 mm bore diameter with round bore geometry for standard shaft fitment\u003c\/li\u003e\n\u003cli\u003e37 mm outside diameter and 9 mm width for compact radial envelope\u003c\/li\u003e\n\u003cli\u003e1,430 pound dynamic load capacity and 821 pound static load capacity\u003c\/li\u003e\n\u003cli\u003e26,000 RPM maximum rated speed suits high-speed rotating equipment\u003c\/li\u003e\n\u003cli\u003eSteel cage construction for durability in lubricated environments\u003c\/li\u003e\n\u003cli\u003eOpen design without flange or snap ring for straightforward housing installation\u003c\/li\u003e\n\u003cli\u003eConforms to ISO 15 dimensional standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement for applications requiring a Series 61904 single-row thin section ball bearing with a 20 mm bore, 37 mm outside diameter, and 9 mm width per ISO 15 standards.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified mechanic or equipment technician familiar with bearing press-fit procedures. Always de-energize and lock out the equipment before removing or installing bearings. Use a proper bearing press or driver tool that applies force only to the press-fit ring to avoid damaging the races or cage. The open design requires adequate lubrication applied to the bearing prior to or at the time of installation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Type\u003c\/strong\u003e: Thin Section Ball Bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 20 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 37 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 9 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDynamic Load Capacity\u003c\/strong\u003e: 1,430 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatic Load Capacity\u003c\/strong\u003e: 821 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 26,000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Rows\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle\u003c\/strong\u003e: Open\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Type\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCage Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Type\u003c\/strong\u003e: Without Flange\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSnap Ring Included\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 61904\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ISO 15\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.084 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SKF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 61904\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SKF","offers":[{"title":"Default Title","offer_id":67907267395890,"sku":"61904","price":92.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0e8369091f2bedc49b37e8dbc0afb1b0.jpg?v=1791176053","url":"https:\/\/voomisupply.com\/products\/skf-61904-thin-section-ball-bearing-20mm-bore-open","provider":"Voomi Supply","version":"1.0","type":"link"}