{"product_id":"fk8-thk-ball-screw-support-unit","title":"FK8 THK Ball Screw Support Unit","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTHK round fixed-side support unit for ball screws with an 8 mm bearing journal diameter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe FK8 contains a factory-preloaded P5 angular-contact bearing set in a DF arrangement, providing accurate shaft positioning and high axial rigidity. Its compact round housing is ideal for miniature ball screw applications where installation space is limited.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe unit is supplied complete with its housing, bearing set, set nut, collars, seal, lock nut and locking screw.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProduct characteristics\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eCategory: Ball screw support units\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eManufacturer: THK\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSeries: FK\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDesign: Round support unit\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMounting position: Fixed side\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBearing journal diameter: 8 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBearing arrangement: DF angular-contact arrangement\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBearing accuracy: P5\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBearing used: 798 equivalent\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePreload: Factory adjusted\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWeight: 0.150 kg\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCountry of origin: Japan\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMain dimensions\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eShaft diameter d: 8 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eOverall length L: 23 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFlange thickness H: 9 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eF: 14 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eE: 26 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHousing location diameter D: 28 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHousing outside diameter A: 43 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMounting-hole pitch-circle diameter: 35 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eB: 35 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSquare dimension T: 14 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMounting method A\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eL1: 7 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eT1: 4 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMounting method B\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eL2: 10 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eT2: 7 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMounting-hole dimensions\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNumber of mounting holes: 4\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHole spacing: 90° equidistant\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThrough-hole diameter d1: 3.4 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCounterbore diameter d2: 6.5 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCounterbore depth h: 4 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThread M: M3\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCollar dimensions\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eCollar outside diameter D: 11.5 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCollar thickness t: 7.5 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLoad ratings\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBasic dynamic axial load rating Ca: 2.93 kN\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eStatic permissible axial load: 2.15 kN\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eAxial rigidity: 49 N\/μm\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eComponents supplied\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eHousing: 1\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePrecision bearing set: 1\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSet nut: 1\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCollars: 2\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSeal: 1\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLock nut: 1\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHexagonal socket-head locking screw with set piece: 1\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe FK8 is designed for the fixed end of a miniature ball screw and can be paired with a suitable THK supported-side unit.\u003c\/span\u003e\u003c\/p\u003e","brand":"THK","offers":[{"title":"Default Title","offer_id":58566266225021,"sku":"FK8-THK","price":188.34,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0588\/9684\/2842\/files\/THKFKImage1_3c51b80c-41a2-41b2-88ce-95e9fd3ee765.jpg?v=1787221458","url":"https:\/\/bearing-king.co.uk\/products\/fk8-thk-ball-screw-support-unit","provider":"Bearing King","version":"1.0","type":"link"}