{"product_id":"square-linear-guideway-rail-hgh15-86-61in-2-hgh15ca-blocks-precise","title":"Square Linear Guideway Rail HGH15 86.61in + 2 HGH15CA Blocks - Precise","description":"\u003cp\u003eOur review of the Square Linear Guideway Rail HGH15 86.61in kit finds it best suited for hobbyists and light industrial CNC builders who need a long, rigid linear rail with reliable square bearing carriages. The bottom line: this 2200mm HGH15 rail paired with two HGH15CA square slider blocks delivers durable, low-friction linear motion thanks to hardened high-carbon steel construction and a Goethe-style four-point contact design, making it a practical choice when straight travel and load stability matter.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-carbon steel rail:\u003c\/strong\u003e The hardened and tempered rail resists wear and bending so it keeps accurate linear motion over long use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGoethe-style four-point contact:\u003c\/strong\u003e The bearing design spreads loads evenly in all directions and offers self-aligning tolerance for slightly imperfect mounts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickened bearing blocks:\u003c\/strong\u003e HGH15CA carriages use quality bearing steel and more steel balls for lower friction and smoother travel under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchangeable sizing:\u003c\/strong\u003e The kit is compatible with other square linear rail kits and can be custom ordered in different lengths if needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory direct supply:\u003c\/strong\u003e Purchased direct from the maker enables access to custom lengths and technical support for integration into CNC builds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is ideal for DIY CNC builders, router and gantry makers, and small machine shops that need a 2200mm linear guide with square carriages for higher moment stability. It fits projects where load must be supported from multiple directions and where longer rails reduce the need for splicing.\u003c\/p\u003e\n\u003cp\u003eLess suitable for ultra-high precision metrology or space-constrained hobby projects that require miniature or shaft-style rails; users needing lengths beyond standard offerings should contact the supplier about splicing or custom orders instead of assuming off-the-shelf lengths.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDurable high-carbon steel construction provides long-term wear resistance and strong bending resistance.\u003c\/li\u003e\n\u003cli\u003eSquare HGH15CA blocks offer smooth, low-friction travel with many bearing balls for improved lifespan.\u003c\/li\u003e\n\u003cli\u003eFour-point contact design handles loads evenly in all directions and compensates for small mounting errors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAt 2200mm the rail can be heavy and may require careful mounting to avoid sag or alignment issues during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eMssoomm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eHGH15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRail width\u003c\/td\u003e\n\u003ctd\u003e15mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e86.61in \/ 2200mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded parts\u003c\/td\u003e\n\u003ctd\u003e1x HGH15 rail, 2x HGH15CA carriage blocks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHigh-carbon steel, quenched and tempered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaintenance\u003c\/td\u003e\n\u003ctd\u003eUse #46 grease for upkeep\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor builders seeking a durable, long 15mm square linear guide for CNC or motion rigs, this HGH15 2200mm kit is a sensible value: strong hardened steel rail, self-aligning four-point bearings, and robust square carriages deliver reliable, low-friction performance. Buy it if you need load stability and interchangeability; contact the seller for custom lengths or splicing if your project requires longer rails.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this rail be ordered in other lengths?\u003c\/strong\u003e\u003cbr\u003eYes, the manufacturer offers customization and can provide different total lengths or hole-spacing-contact them to specify your required length.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat lubrication is recommended?\u003c\/strong\u003e\u003cbr\u003ePeriodic lubrication with #46 grease is recommended to maintain smooth motion and extend service life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the HGH15CA blocks fit other square rails?\u003c\/strong\u003e\u003cbr\u003eThey are designed to be interchangeable with other square HGH15-type kits, but verify hole spacing and dimensions for exact compatibility.\u003c\/p\u003e","brand":"Mssoomm","offers":[{"title":"Default Title","offer_id":48618233397467,"sku":"B08BCFWJ23","price":335.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61lk5HFFGNL._SL1500_1e8f83bd-ba64-442a-8b37-fafe080d6af1.jpg?v=1778522426","url":"https:\/\/gearmusthave.com\/products\/square-linear-guideway-rail-hgh15-86-61in-2-hgh15ca-blocks-precise","provider":"GearMustHave","version":"1.0","type":"link"}