{"product_id":"bk12-bf12-ball-screw-support-blocks","title":"BK12 \/ BF12 Ball Screw Support Blocks","description":"\u003cp\u003eThe BK12 and BF12 ball screw support blocks provide secure bearing support for the machined ends of compatible CNC ball screws.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eBK12 fixed support block\u003c\/strong\u003e controls the position of the ball screw and supports axial and radial loading. The \u003cstrong\u003eBF12 floating support block\u003c\/strong\u003e supports the opposite end while allowing the screw to compensate for slight thermal expansion during operation.\u003c\/p\u003e\n\n\u003cp\u003eChoose the support type needed for your repair, machine build, or motion-system upgrade. A typical ball screw axis uses one BK12 fixed support and one BF12 floating support.\u003c\/p\u003e\n\n\u003ch2\u003eAvailable Support Types\u003c\/h2\u003e\n\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"padding: 8px; text-align: left; border: 1px solid #dddddd;\"\u003eModel\u003c\/th\u003e\n      \u003cth style=\"padding: 8px; text-align: left; border: 1px solid #dddddd;\"\u003eSupport Type\u003c\/th\u003e\n      \u003cth style=\"padding: 8px; text-align: left; border: 1px solid #dddddd;\"\u003ePurpose\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eBK12\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #dddddd;\"\u003eFixed end\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #dddddd;\"\u003eLocates the ball screw and controls axial movement\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eBF12\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #dddddd;\"\u003eFloating end\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #dddddd;\"\u003eSupports the opposite end while allowing slight axial expansion\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDesigned for ball screws with compatible 12-series machined end dimensions\u003c\/li\u003e\n  \u003cli\u003eRigid metal bearing housing\u003c\/li\u003e\n  \u003cli\u003ePre-installed bearing assembly\u003c\/li\u003e\n  \u003cli\u003eHelps maintain ball screw alignment and smooth rotation\u003c\/li\u003e\n  \u003cli\u003eSuitable for CNC routers, linear motion systems, automation equipment, and machine repairs\u003c\/li\u003e\n  \u003cli\u003eAvailable as either a BK12 fixed support or BF12 floating support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eChoosing the Correct Support\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBK12:\u003c\/strong\u003e Select this model for the fixed or driven end of the ball screw.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBF12:\u003c\/strong\u003e Select this model for the floating or supported end of the ball screw.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe BK12 and BF12 perform different functions and are not interchangeable. Many complete axis assemblies require one of each.\u003c\/p\u003e\n\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOne BK12 or BF12 support block, based on the selected variant\u003c\/li\u003e\n  \u003cli\u003eInstalled bearing components normally supplied with the selected block\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eBall screw, ball nut, motor, motor cage, shaft coupler, and machine mounting hardware are not included unless specifically shown or stated.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCompatibility Notice\u003c\/h2\u003e\n\n\u003cp\u003eThe “12” designation refers to the support-block series and compatible machined ball-screw journal dimensions. It does not necessarily mean the main threaded portion of the ball screw measures 12mm.\u003c\/p\u003e\n\n\u003cp\u003eVerify the machined end dimensions and mounting pattern of your ball screw before ordering. Compatibility with every third-party ball screw or custom machine is not guaranteed.\u003c\/p\u003e\n","brand":"PwnCNC","offers":[{"title":"BK12 - Fixed Support Block","offer_id":47982294728843,"sku":"BS-SUPPORT-BK12","price":29.99,"currency_code":"USD","in_stock":true},{"title":"BF12 - Floating Support Block","offer_id":47982294761611,"sku":"BS-SUPPORT-BF12","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0387\/5982\/5547\/files\/BK12.png?v=1783786921","url":"https:\/\/pwncnc.com\/products\/bk12-bf12-ball-screw-support-blocks","provider":"PwnCNC","version":"1.0","type":"link"}