{"product_id":"value-collection-20121-chrome-steel-ball-grade-25","title":"Value Collection 20121 Chrome Steel Ball Grade 25","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 20121 is a Grade 25 chrome steel ball used in precision bearing, linear motion, and mechanical assembly applications. Measuring 11\/16 inches in diameter, it is manufactured to tight dimensional tolerances, with a diameter deviation of no more than 0.00005 inches and a sphericity of 0.000025 inches. The chrome steel construction delivers a Rockwell hardness of 62 to 66 HRC, making it well-suited for high-load and high-cycle environments. Machinists, bearing technicians, and industrial maintenance professionals specify this grade when dimensional accuracy and surface consistency are critical to system performance.\u003c\/p\u003e\n\u003cp\u003eGrade 25 chrome steel balls are commonly used as rolling elements in radial and angular-contact ball bearings, precision valves, pumps, and check valve assemblies. They are appropriate for both light-duty and moderate-load industrial applications where tighter tolerances than standard commercial-grade balls are required. This ball is sold in packages of 25, making it practical for shop stock, repair kits, or small-volume production runs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 25 precision rating with 0.00005 inch maximum diameter deviation\u003c\/li\u003e\n  \u003cli\u003eSphericity held to 0.000025 inches for consistent rolling performance\u003c\/li\u003e\n  \u003cli\u003e62 to 66 HRC hardness for durability in high-load applications\u003c\/li\u003e\n  \u003cli\u003eChrome steel construction resists wear and deformation under cyclic stress\u003c\/li\u003e\n  \u003cli\u003e11\/16 inch diameter fits standard bearing and valve bore specifications\u003c\/li\u003e\n  \u003cli\u003ePackaged in quantities of 25 for convenient shop or field use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a precision replacement or stock ball for Grade 25 chrome steel ball applications in bearings, pumps, valves, and mechanical assemblies requiring an 11\/16 inch diameter rolling element.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by bearing technicians or mechanical assemblers using clean, lint-free handling practices to avoid surface contamination. Bearings and housings should be fully depressurized or de-energized before disassembly and ball replacement. Avoid direct hand contact with the ball surface during installation, as skin oils can accelerate corrosion; use gloves or clean tooling. Inspect mating races and seats for wear or damage before installing new balls.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 11\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Grade 25\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Chrome Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 62 to 66 HRC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Deviation\u003c\/strong\u003e: 0.00005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSphericity\u003c\/strong\u003e: 0.000025 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 25\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 30102304\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 20121\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51689491693874,"sku":"20121","price":31.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/27e4381f9a3cacf223755f40da510b2d.jpg?v=1788260330","url":"https:\/\/voomisupply.com\/products\/value-collection-20121-chrome-steel-ball-grade-25","provider":"Voomi Supply","version":"1.0","type":"link"}