{"product_id":"gibraltar-826811-g-inspection-tooling-ball-3-8-in-press-fit","title":"Gibraltar 826811-G Inspection Tooling Ball 3\/8 in Press-fit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GIBRALTAR 826811-G is a shoulder-style inspection tooling ball used in precision measurement and fixturing applications. The 0.375-inch diameter ball sits on a 0.1875-inch diameter press-fit shank, with a ball center to shoulder bottom distance of 0.3 inches and a ball center to shank bottom distance of 0.75 inches. Heat-treated steel construction provides the hardness and dimensional stability required for repeatable inspection work. Ball and shank concentricity is held to 0.0002 inches, supporting accurate datum referencing in CMM fixtures, jigs, and gauging setups. Machinists and metrologists install this part as a fixed reference point in precision tooling assemblies.\u003c\/p\u003e\u003cp\u003eThis inspection tooling ball is suited for use in machine shop and manufacturing environments where repeatable positional references are required. It installs via press-fit into a prepared bore in a fixture plate, CMM tombstone, or inspection jig. The shoulder design provides a positive stop at installation depth, ensuring consistent ball centerline location across multiple units. Applications include coordinate measuring machine fixtures, assembly jigs, and part-location gauging setups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.375-inch ball diameter with 0.0002-inch ball and shank concentricity for precise datum referencing\u003c\/li\u003e\n\u003cli\u003ePress-fit shank attachment for secure, repeatable installation in prepared bores\u003c\/li\u003e\n\u003cli\u003eShoulder design provides a positive depth stop during installation\u003c\/li\u003e\n\u003cli\u003eHeat-treated steel construction for hardness and dimensional stability\u003c\/li\u003e\n\u003cli\u003e0.3-inch ball center to shoulder bottom and 0.75-inch ball center to shank bottom dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style inspection tooling ball for use in precision fixturing, CMM setups, and gauging assemblies requiring a 0.1875-inch press-fit shank bore.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists or metrology technicians using a press or arbor to drive the shank into a precision-bored hole. Ensure the receiving bore is machined to the correct tolerance to accept the press-fit shank without distorting the ball geometry. Do not hammer the ball directly. Verify seating against the shoulder before use to confirm consistent ball centerline height.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Diameter\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Tolerance\u003c\/strong\u003e: +0.0003 \/ -0.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Center to Shoulder Bottom\u003c\/strong\u003e: 0.3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Center to Shank Bottom\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall and Shank Concentricity\u003c\/strong\u003e: 0.0002 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Attachment Type\u003c\/strong\u003e: Press-Fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTooling Ball Style\u003c\/strong\u003e: Inspection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShoulder\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat-Treated\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.08 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: GIBRALTAR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 826811-G\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GIBRALTAR","offers":[{"title":"Default Title","offer_id":51703089692978,"sku":"826811-G","price":62.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a2e67ea580ac3042d0351974c2e5d3e8.jpg?v=1788414740","url":"https:\/\/voomisupply.com\/products\/gibraltar-826811-g-inspection-tooling-ball-3-8-in-press-fit","provider":"Voomi Supply","version":"1.0","type":"link"}