{"product_id":"door-axis-commercial-ball-bearing-door-hinge-heavy-duty","title":"Door Axis Commercial Ball Bearing Door Hinge, Heavy Duty","description":"\u003cp\u003eThe Door Axis Commercial Ball Bearing Hinge carries high-frequency doors on lubricated bearing races instead of bare knuckle joints. It serves offices, multifamily corridors, and hard-used residential openings where plain hinges wear loose.\u003c\/p\u003e\u003cp\u003eBearing raceways between the knuckles take the vertical load of the door, so the hinge swings smoothly under weight and resists the sag that plain-bearing hinges develop in commercial duty. The fixed pin resists tampering on outswing openings. Offered in a 3-1\/2 in square-radius leaf and a 4 in leaf with 5\/8 in radius corners, in Satin Nickel steel or full Stainless Steel for exterior and corrosion-prone service.\u003c\/p\u003e\u003ch3\u003eHighlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBall bearing knuckle rated for high-frequency commercial use\u003c\/li\u003e\n\u003cli\u003eFixed pin resists removal on outswing doors\u003c\/li\u003e\n\u003cli\u003eHalf moon 8-hole screw pattern, fasteners included\u003c\/li\u003e\n\u003cli\u003e3-1\/2 in square-radius or 4 in radius-corner leaf\u003c\/li\u003e\n\u003cli\u003eStainless Steel option for exterior and wet exposure\u003c\/li\u003e\n\u003cli\u003eMortise mount interchangeable with standard butt hinges\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecification Table\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBall bearing butt hinge, commercial grade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLeaf sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-1\/2 x 3-1\/2 in or 4 x 4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBearing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBall bearing knuckle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFixed, non-removable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteel or Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMortise, fasteners included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHole pattern\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHalf moon, 8 holes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInterior, exterior, commercial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSold per hinge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eIncluded Components\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOne ball bearing hinge in the selected size and finish\u003c\/li\u003e\n\u003cli\u003eMatching mounting screws\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUse three hinges per commercial slab up to 90 in; four on taller or heavier leaves.\u003c\/li\u003e\n\u003cli\u003eChoose Stainless Steel for exterior, coastal, or wash-down environments.\u003c\/li\u003e\n\u003cli\u003eFixed-pin hinges install with the barrel up in either handing; confirm swing before mortising.\u003c\/li\u003e\n\u003cli\u003eShim mortises so leaves seat flush; bearing hinges telegraph misalignment as binding.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWarranty and Support\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eCommercial service coverage confirmed during quote review.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhen do I need ball bearing hinges?\u003c\/strong\u003e\u003cbr\u003eAny opening cycling more than a typical residential door: offices, corridors, entries with closers. Closers in particular demand bearing hinges to protect the frame.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich size carries an exterior door?\u003c\/strong\u003e\u003cbr\u003eMost 1-3\/4 in exterior slabs hang on the 4 in leaf, three per door. Heavier doors and doors with closers are reviewed during quoting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the stainless option magnetic?\u003c\/strong\u003e\u003cbr\u003eThe stainless alloy used is corrosion-resistant hardware stainless; confirm alloy details during quote review if specification requires it.\u003c\/p\u003e\n\u003ch3\u003eDocuments\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0829\/7490\/0480\/files\/DA-DR-HW-HNG-BB-submittal.pdf?v=1783251291\" target=\"_blank\" rel=\"noopener\"\u003eProduct Submittal Summary (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0829\/7490\/0480\/files\/DA-DR-HW-HNG-BB-dimensional.pdf?v=1783251291\" target=\"_blank\" rel=\"noopener\"\u003eDimensional \u0026amp; Fit Reference (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0829\/7490\/0480\/files\/DA-DR-HW-HNG-BB-install-warranty.pdf?v=1783251291\" target=\"_blank\" rel=\"noopener\"\u003eInstallation \u0026amp; Warranty Reference (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Door Axis","offers":[{"title":"3-1\/2 in Square Radius \/ Satin Nickel","offer_id":48932350263552,"sku":"DA-DR-HW-HNG-BB-35-SN","price":0.0,"currency_code":"USD","in_stock":true},{"title":"3-1\/2 in Square Radius \/ Stainless Steel","offer_id":48932350296320,"sku":"DA-DR-HW-HNG-BB-35-SS","price":0.0,"currency_code":"USD","in_stock":true},{"title":"4 in, 5\/8 in Radius \/ Satin Nickel","offer_id":48932350329088,"sku":"DA-DR-HW-HNG-BB-40-SN","price":0.0,"currency_code":"USD","in_stock":true},{"title":"4 in, 5\/8 in Radius \/ Stainless Steel","offer_id":48932350361856,"sku":"DA-DR-HW-HNG-BB-40-SS","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/7490\/0480\/files\/01-hero_a2353e5b-de39-4e62-8dae-12edaaf6fecc.png?v=1783251197","url":"https:\/\/ironcinder.com\/products\/door-axis-commercial-ball-bearing-door-hinge-heavy-duty","provider":"IronCinder","version":"1.0","type":"link"}