{"product_id":"20mm-ballscrew-sfu2005-rm2005-2200mm-5mm-pitch-high-precision-cnc","title":"20mm Ballscrew SFU2005 RM2005 2200mm 5mm Pitch - High Precision CNC","description":"\u003cp\u003eIn this review of the 20mm Ballscrew SFU2005 RM2005, the bottom line is clear: this long 2200mm ballscrew is aimed at CNC builders and maintenance technicians who need a high-precision, low-friction linear drive for long travel axes. The reviewer found the rolled-thread C7 grade shaft with 5mm pitch delivers predictable, low-noise motion and reduced drive power requirements, making it a useful replacement or upgrade for machines that demand accurate positioning without stick-slip. It is a specialist component best chosen when length and stiffness matter.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20mm diameter:\u003c\/strong\u003e provides a compact yet stiff shaft that suits smaller to mid-size CNC axes where space is limited but rigidity is required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5mm lead\/pitch:\u003c\/strong\u003e balances speed and resolution so machines can run at reasonable translational speeds while keeping fine positioning control for milling or routing tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2200mm total length:\u003c\/strong\u003e supports long travel applications such as gantry axes or extended linear tables without needing couplers between segments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard end machining for BK\/BF15:\u003c\/strong\u003e simplifies installation into beds using common bearing blocks, reducing setup time on retrofit projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC7 precision (rolled):\u003c\/strong\u003e gives consistent dimensional accuracy for many production and hobbyist CNC uses while offering long service life from lower friction operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal deflector nut included:\u003c\/strong\u003e adds protection for the ball nut and helps maintain smooth circulation for extended duty cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis ballscrew is best for machine builders, retrofitters, and repair technicians who need a single long, ready-machined shaft for a gantry or long-axis application and who value reduced noise, low starting torque, and improved stiffness over sliding guides. It suits hobby CNC shops scaling up to light industrial projects where a 20mm shaft and 5mm lead are appropriate.\u003c\/p\u003e\n\u003cp\u003eIt is not ideal for ultra-high-precision metrology rigs that require C5 ground screws, nor for applications that demand specialized end fittings beyond the provided BK\/BF15 configuration without additional machining. Customers needing shorter lengths or different leads should look at other models in a full ballscrew range.\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\u003eLong 2200mm length with standard end machining makes it ready for many gantry installations.\u003c\/li\u003e\n\u003cli\u003eRolled C7 thread and metal nut result in low friction, less heat, and small starting torque.\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic stiffness improves positioning accuracy compared with sliding systems.\u003c\/li\u003e\n\u003cli\u003ePositive and negative rotation symmetry supports reversible axis designs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eC7 precision is good for many uses but not as tight as C5 grade for ultra-fine positioning needs.\u003c\/li\u003e\n\u003cli\u003eLength and single-piece form may require careful handling and support during installation to avoid bending.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSFU2005 RM2005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead \/ Pitch\u003c\/td\u003e\n\u003ctd\u003e5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Length\u003c\/td\u003e\n\u003ctd\u003e2200mm (86.61 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrecision\u003c\/td\u003e\n\u003ctd\u003eC7 Grade (rolled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Machining\u003c\/td\u003e\n\u003ctd\u003eStandard for BK\/BF15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNut\u003c\/td\u003e\n\u003ctd\u003eMetal deflector ballscrew nut included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 20mm SFU2005 RM2005 ballscrew is a practical, value-oriented choice for CNC builders needing a long, stiff, and low-friction linear drive. It offers reliable positioning, reduced driving power, and ready-to-install end machining for common bearing blocks; those requiring top-tier ground accuracy should consider a C5 alternative, but for most retrofit and production tasks this provides a durable, serviceable solution.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this ballscrew be shortened or customized?\u003c\/strong\u003e\u003cbr\u003eYes, the seller offers customization and can process different lengths or fittings on request; provide required dimensions before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this suitable for high-speed axes?\u003c\/strong\u003e\u003cbr\u003eThe 5mm lead and 20mm diameter allow reasonable speeds with low starting torque and reduced heat, but extreme high-speed spindles may require different sizing or lubrication considerations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it come with the nut and end machining installed?\u003c\/strong\u003e\u003cbr\u003eYes, the product includes a metal deflector ballscrew nut and standard end machining for BK\/BF15 bearing blocks as supplied.\u003c\/p\u003e","brand":"Mssoomm","offers":[{"title":"Default Title","offer_id":48256992018651,"sku":"B088WF3YD5","price":249.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/31MDjbke9TL_89000a25-4197-4224-95dc-3eab5b4c724d.jpg?v=1778226230","url":"https:\/\/gearmusthave.com\/products\/20mm-ballscrew-sfu2005-rm2005-2200mm-5mm-pitch-high-precision-cnc","provider":"GearMustHave","version":"1.0","type":"link"}