{"product_id":"12mm-hex-hub","title":"12mm Hex Hubs Pair, 4mm \u0026 6mm Bore","description":"\u003ch2\u003ePerfect for SSP kits, Blitz, DartBox and More!\u003c\/h2\u003e\n\u003cp class=\"\"\u003eThese hex hubs are perfect for mounting wheels or 3D printed custom parts to your motor shafts. Available in \u003cstrong\u003e4mm and 6mm bore\u003c\/strong\u003e to fit a wide range of popular gearmotors — including our own \u003ca href=\"https:\/\/justcuzrobotics.com\/products\/blitz-lite-1604\"\u003eBlitz Lite\u003c\/a\u003e, \u003ca href=\"https:\/\/justcuzrobotics.com\/products\/blitz-pro-bulletproof-brushless-24mm-gearmotors\"\u003eBlitz Pro\u003c\/a\u003e, and \u003ca href=\"https:\/\/justcuzrobotics.com\/products\/dartbox-squared-drive\"\u003eDartBox Gearmotors\u003c\/a\u003e. Made from strong yet lightweight 6061 aluminum, at 1\/3rd the weight of brass or steel, these hubs will fit in well on almost any bot with direct-driven wheels! There are two extra tapped holes for inserting long set screws or normal M4 x 4mm set screws (included) on the hex side to help secure narrower wheels, gears, pulleys, and more. And unique to these hubs is a precision turned 12mm diameter for adding a \u003ca href=\"https:\/\/justcuzrobotics.com\/products\/12mm-bearing-pair\"\u003ebearing (sold here)\u003c\/a\u003e or bushing support to protect otherwise fragile direct-driven wheel setups.\u003c\/p\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eNot sure which bore to choose?\u003c\/strong\u003e Pick the one that matches your motor's output shaft diameter. Both variants share the same hex size and overall dimensions — only the bore differs.\u003c\/p\u003e\n\u003ch4\u003e\n\u003ca href=\"https:\/\/grabcad.com\/library\/12mm-hex-hubs-4mm-and-6mm-bore-for-dartbox-more-1\"\u003eCAD Model Download Here\u003c\/a\u003e (both bores included)\u003c\/h4\u003e\n\u003cp class=\"\"\u003eEach package contains two (2) hubs and four (4) M4 x 4mm set screws.\u003c\/p\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eNOTE: 6mm bore hubs will not work with 4mm shaft motors. For DartBox gearmotors, see our \u003ca href=\"https:\/\/justcuzrobotics.com\/products\/6mm-upgrade-dartbox-v2\"\u003e6mm shaft upgrade kit\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eCompatible Motors\u003c\/h3\u003e\n\u003ch4\u003eCompatible Motors\u003c\/h4\u003e\n\u003ch4\u003e4mm Bore:\u003c\/h4\u003e\n\u003cul data-rte-list=\"default\"\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/justcuzrobotics.com\/products\/dartbox-squared-drive\"\u003eDartBox Viper \u0026amp; Dragon Drive\u003c\/a\u003e 4mm Gearmotors\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDartBox \u003ca href=\"https:\/\/justcuzrobotics.com\/products\/dartbox-gecko\"\u003eGecko 4mm\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eServocity Premium Planetary Gear Motor\u003c\/li\u003e\n\u003cli\u003eServocity Econ Spur Gear Motor\u003c\/li\u003e\n\u003cli\u003eRectified Robotics Brushless Gearmotor\u003c\/li\u003e\n\u003cli\u003eBotkits 22mm DC Gearmotor\u003c\/li\u003e\n\u003cli\u003eDouble Geared 25mm Motors\u003c\/li\u003e\n\u003cli\u003eAny other 4mm shaft motors!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e6mm Bore:\u003c\/h4\u003e\n\u003cul data-rte-list=\"default\"\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/justcuzrobotics.com\/products\/blitz-lite-1604\"\u003eBlitz Lite 20mm Brushless Gearmotors\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/justcuzrobotics.com\/products\/blitz-pro-bulletproof-brushless-24mm-gearmotors\"\u003eBlitz Pro 24mm Brushless Gearmotors\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDartBox \u003ca href=\"https:\/\/justcuzrobotics.com\/products\/dartbox-gecko\"\u003eGecko 6mm\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/justcuzrobotics.com\/products\/dartbox-squared-drive\"\u003eDartBox Viper \u0026amp; Dragon\u003c\/a\u003e with \u003ca href=\"https:\/\/justcuzrobotics.com\/products\/6mm-upgrade-dartbox-v2\"\u003e6mm shaft upgrade kit\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eRepeat Drive Max \u0026amp; Pro\u003c\/li\u003e\n\u003cli\u003eMega Sparks\u003c\/li\u003e\n\u003cli\u003eAny other 6mm shaft motors!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cul data-rte-list=\"default\"\u003e\n\u003cli\u003eMaterial: 6061 Aluminum, strong and lightweight\u003c\/li\u003e\n\u003cli\u003eTotal Length: 18 mm (0.71 in)\u003c\/li\u003e\n\u003cli\u003eWeight: \u0026lt;5 grams each with two set screws, \u0026lt;10 grams (0.352 oz) per pair!\u003c\/li\u003e\n\u003cli\u003e12mm hex, compatible with many off-the-shelf or custom wheels!\u003c\/li\u003e\n\u003cli\u003e4mm or 6mm round bore (see variant)\u003c\/li\u003e\n\u003cli\u003eShort M4 x 4mm set screws on the rear section\u003c\/li\u003e\n\u003cli\u003ePrecision turned 12mm diameter for bushing or bearing support! (\u003ca href=\"https:\/\/justcuzrobotics.com\/products\/12mm-bearing-pair\"\u003ebearings sold separately\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eLonger set screws (not included) can be used to secure custom wheels, gears, pulleys, etc on the hex end\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003e4mm only:\u003c\/em\u003e Included M4 x 10mm flathead screw can be used to secure wheels, pulleys, etc from sliding off the end\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/grabcad.com\/library\/12mm-hex-hubs-4mm-and-6mm-bore-for-dartbox-more-1\"\u003e\u003cstrong\u003eCAD Model Download Here\u003c\/strong\u003e\u003c\/a\u003e (both bores included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e4mm Drawing below, all dimensions in mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0764\/3129\/4773\/files\/drawinghexhub4mm_480x480.jpg?v=1688938400\" alt=\"drawing 12mm hex hub 4mm and 6mm bore\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6mm Drawing below, all dimensions in mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0764\/3129\/4773\/files\/6mm_hex_hub_drawing.png?v=1779814776\"\u003e\u003c\/p\u003e","brand":"Just 'Cuz Robotics","offers":[{"title":"4mm","offer_id":52925252043061,"sku":"4mmHEXHUB12PAIR - 4mm","price":12.0,"currency_code":"USD","in_stock":true},{"title":"6mm","offer_id":52925252075829,"sku":"6mmHEXHUB12PAIR - 6mm","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0764\/3129\/4773\/products\/ZV_02604_1.jpg?v=1684188823","url":"https:\/\/justcuzrobotics.com\/products\/12mm-hex-hub","provider":"Just 'Cuz Robotics","version":"1.0","type":"link"}