{"product_id":"lmf-round-flange-linear-motion-bearings-6uu-60uu","title":"Round Flange Linear Motion Bearings LMF 6UU\/8\/10\/12\/13\/16\/20\/25\/30\/35\/40\/50\/60UU","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003eLMF Round Flange Linear Motion Bearings — Precise, Low-Friction Linear Travel\u003c\/h2\u003e\n    \u003cp\u003eWhen your CNC router, 3D printer, or linear actuator demands smooth, repeatable shaft travel with zero slop, a worn or mismatched bearing becomes the weakest link in the entire system. Engineers, makers, and automation builders who need a reliable drop-in solution turn to the LMF series round flange linear motion bearing — a flanged variant of the industry-standard LM series designed for bolt-down mounting without additional clamps or housings.\u003c\/p\u003e\n    \u003cp\u003eEach LMF bearing consists of a hardened steel outer shell with a round mounting flange, recirculating steel ball circuits, and a precision-ground bore. Available in bore diameters from 6 mm (0.24 in) to 60 mm (2.36 in), the series covers shaft sizes LMF6UU through LMF60UU, with outer diameters ranging from 12 mm (0.47 in) to 90 mm (3.54 in) and body lengths from 19 mm (0.75 in) to 110 mm (4.33 in). Retaining rings or snap rings secure the bearing within the flange bore.\u003c\/p\u003e\n    \u003cp\u003eTypical applications include linear guide systems for desktop CNC milling machines, Cartesian-axis 3D printers requiring smooth Z- or Y-axis travel, pick-and-place robotic arms, and laboratory automation slides where repeatable positioning is critical. The flanged design also suits drawer-slide mechanisms and light-duty linear actuators in industrial equipment.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003e🔩\u003c\/span\u003e\n    \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for use with hardened, ground linear shafts (h7 tolerance recommended). Match the bearing bore to your shaft diameter — LMF6UU fits Ø6 mm shafts, LMF8UU fits Ø8 mm, up to LMF60UU for Ø60 mm shafts. Flange bolt pattern varies by size; see variant options for exact flange dimensions.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e✅ Key Features of These LMF Round Flange Linear Motion Bearings\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-features\"\u003e\n\n    \u003cdiv\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e\n      \u003cstrong\u003eRound Flange Mounting\u003c\/strong\u003e\n      \u003cp\u003eThe integrated round flange allows direct bolt-down installation onto flat plates or housings, eliminating the need for separate pillow-block clamps and reducing assembly part count.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\n      \u003cstrong\u003eFull-Range Size Series\u003c\/strong\u003e\n      \u003cp\u003eThirteen sizes from LMF6UU to LMF60UU cover bore diameters of 6, 8, 10, 12, 13, 16, 20, 25, 30, 35, 40, 50, and 60 mm — matching the most common linear shaft standards used in CNC and automation builds.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\n      \u003cstrong\u003eRecirculating Ball Circuit\u003c\/strong\u003e\n      \u003cp\u003eMultiple rows of recirculating steel balls distribute load evenly around the shaft, delivering smooth, low-friction travel and consistent motion even under moderate radial loads.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\n      \u003cstrong\u003eHardened Steel Construction\u003c\/strong\u003e\n      \u003cp\u003eThe outer race and ball elements are manufactured from hardened bearing steel, providing resistance to wear and deformation under repetitive cycling loads typical of CNC and robotic applications.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n      \u003cstrong\u003eStandardized LMF Dimensions\u003c\/strong\u003e\n      \u003cp\u003eBore, outer diameter, and body length follow the internationally recognized LMF series dimensional standard, ensuring interchangeability with housings and shafts sourced from multiple suppliers.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\n      \u003cstrong\u003eVersatile Application Fit\u003c\/strong\u003e\n      \u003cp\u003eSuited for 3D printer linear axes, CNC router gantries, pick-and-place robotic arms, laboratory automation slides, and light-duty linear actuators — anywhere a flanged linear bearing simplifies mounting.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003ch2\u003e📐 Technical Specifications — LMF Round Flange Linear Bearings\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eLMF (Round Flange Linear Motion Bearing)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Sizes\u003c\/th\u003e\n\u003ctd\u003eLMF6UU, LMF8UU, LMF10UU, LMF12UU, LMF13UU, LMF16UU, LMF20UU, LMF25UU, LMF30UU, LMF35UU, LMF40UU, LMF50UU, LMF60UU\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBore Diameter Range\u003c\/th\u003e\n\u003ctd\u003e6 mm – 60 mm (0.24 in – 2.36 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eOuter Diameter Range\u003c\/th\u003e\n\u003ctd\u003e12 mm – 90 mm (0.47 in – 3.54 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBody Length Range\u003c\/th\u003e\n\u003ctd\u003e19 mm – 110 mm (0.75 in – 4.33 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eFlange Type\u003c\/th\u003e\n\u003ctd\u003eRound (circular) flange with bolt holes\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBall Circuit Type\u003c\/th\u003e\n\u003ctd\u003eRecirculating steel balls\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eOuter Shell Material\u003c\/th\u003e\n\u003ctd\u003eHardened bearing steel\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eShaft Tolerance (Recommended)\u003c\/th\u003e\n\u003ctd\u003eh7\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eExact Flange Bolt Pattern\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eDynamic Load Rating\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eStatic Load Rating\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 Pcs (per variant selected)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-faq\"\u003e\n    \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the correct LMF bearing size for my build?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMatch the bearing bore diameter to your linear shaft diameter. For example, if your CNC router uses Ø12 mm hardened shafts, select the LMF12UU variant. The bore must match the shaft exactly — do not mix bore and shaft sizes. Also verify that the flange outer diameter and bolt-hole pattern fit your mounting plate before ordering.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat shaft tolerance is recommended for use with these bearings?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eAn h7 shaft tolerance is recommended for smooth operation with minimal play. Using shafts with excessive surface roughness or out-of-tolerance diameters will increase friction, accelerate wear, and reduce bearing service life. Hardened and ground linear shafts (typically case-hardened to 60 HRC or above) are the standard pairing.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these bearings suitable for high-speed or high-load applications?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eLMF series bearings are designed for moderate-speed, moderate-load linear motion — typical of CNC routers, 3D printers, and light automation. For heavy industrial loads or very high cycle speeds, consult the dynamic and static load ratings for your specific size variant and compare against your application requirements. Contact us to confirm suitability for demanding duty cycles.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eDo these bearings require lubrication?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. LMF linear bearings should be lubricated with a light machine oil or lithium-based grease before installation and periodically during service. Proper lubrication reduces friction, prevents corrosion on the ball and raceway surfaces, and extends service life significantly. Many bearings ship with a light factory grease that should be supplemented before first use.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the difference between the LMF and LM series bearings?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe LM series is a standard cylindrical linear bearing that requires a separate housing or clamp for mounting. The LMF series adds an integrated round flange, allowing the bearing to be bolted directly to a flat plate or panel without additional hardware. If your design has a flat mounting surface with bolt holes, the LMF is the more convenient choice.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use these bearings in a corrosive or wet environment?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eStandard LMF bearings are made from hardened carbon bearing steel and are not inherently corrosion-resistant. In humid, wet, or mildly corrosive environments, apply a corrosion-inhibiting grease and consider adding shaft wipers or seals to protect the ball circuit. For highly corrosive environments, stainless steel linear bearings would be a more appropriate choice.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre the dimensions of these bearings interchangeable with other brands?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The LMF series follows internationally standardized dimensions for bore, outer diameter, body length, and flange geometry. This means LMF bearings from HomeDIYer are dimensionally interchangeable with LMF bearings from other manufacturers following the same standard, making them suitable as direct replacements in existing machines and assemblies.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your specification and quantity above, then add to cart.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the correct LMF bearing size for my build?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Match the bearing bore diameter to your linear shaft diameter. For example, if your CNC router uses Ø12 mm hardened shafts, select the LMF12UU variant. The bore must match the shaft exactly. Also verify that the flange outer diameter and bolt-hole pattern fit your mounting plate before ordering.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What shaft tolerance is recommended for use with these bearings?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"An h7 shaft tolerance is recommended for smooth operation with minimal play. Hardened and ground linear shafts (typically case-hardened to 60 HRC or above) are the standard pairing.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these bearings suitable for high-speed or high-load applications?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"LMF series bearings are designed for moderate-speed, moderate-load linear motion typical of CNC routers, 3D printers, and light automation. Consult the dynamic and static load ratings for your specific size variant and compare against your application requirements.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do these bearings require lubrication?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. LMF linear bearings should be lubricated with a light machine oil or lithium-based grease before installation and periodically during service. Proper lubrication reduces friction, prevents corrosion, and extends service life.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between the LMF and LM series bearings?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The LM series is a standard cylindrical linear bearing requiring a separate housing or clamp. The LMF series adds an integrated round flange for direct bolt-down mounting to a flat plate without additional hardware.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these bearings in a corrosive or wet environment?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Standard LMF bearings are made from hardened carbon bearing steel and are not inherently corrosion-resistant. Apply corrosion-inhibiting grease and consider shaft wipers or seals in humid or wet environments.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are the dimensions of these bearings interchangeable with other brands?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The LMF series follows internationally standardized dimensions, making these bearings dimensionally interchangeable with LMF bearings from other manufacturers following the same standard.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"LMF6UU-6*12*19mm \/ 1 Pcs","offer_id":52448868270354,"sku":"GLFBHMKSHXJZC5064x1","price":8.23,"currency_code":"USD","in_stock":true},{"title":"LMF8UU-8*15*24mm \/ 1 Pcs","offer_id":52448868303122,"sku":"GLFBHMKSHXJZC5065x1","price":9.04,"currency_code":"USD","in_stock":true},{"title":"LMF10UU-10*19*29mm \/ 1 Pcs","offer_id":52448868335890,"sku":"GLFBHMKSHXJZC5066x1","price":12.99,"currency_code":"USD","in_stock":true},{"title":"LMF12UU-12*21*30mm \/ 1 Pcs","offer_id":52448868368658,"sku":"GLFBHMKSHXJZC5067x1","price":13.44,"currency_code":"USD","in_stock":true},{"title":"LMF13UU-13*23*32mm \/ 1 Pcs","offer_id":52448868401426,"sku":"GLFBHMKSHXJZC5068x1","price":13.22,"currency_code":"USD","in_stock":true},{"title":"LMF16UU-16*28*37mm \/ 1 Pcs","offer_id":52448868434194,"sku":"GLFBHMKSHXJZC5069x1","price":14.66,"currency_code":"USD","in_stock":true},{"title":"LMF20UU-20*32*42mm \/ 1 Pcs","offer_id":52448868466962,"sku":"GLFBHMKSHXJZC5070x1","price":20.07,"currency_code":"USD","in_stock":true},{"title":"LMF25UU-25*40*59mm \/ 1 Pcs","offer_id":52448868499730,"sku":"GLFBHMKSHXJZC5071x1","price":35.69,"currency_code":"USD","in_stock":true},{"title":"LMF30UU-30*45*64mm \/ 1 Pcs","offer_id":52448868532498,"sku":"GLFBHMKSHXJZC5072x1","price":47.52,"currency_code":"USD","in_stock":true},{"title":"LMF35UU-35*52*70mm \/ 1 Pcs","offer_id":52448868565266,"sku":"GLFBHMKSHXJZC5073x1","price":65.5,"currency_code":"USD","in_stock":true},{"title":"LMF40UU-40*60*80mm \/ 1 Pcs","offer_id":52448868598034,"sku":"GLFBHMKSHXJZC5074x1","price":103.5,"currency_code":"USD","in_stock":true},{"title":"LMF50UU-50*80*100mm \/ 1 Pcs","offer_id":52448868630802,"sku":"GLFBHMKSHXJZC5075x1","price":329.53,"currency_code":"USD","in_stock":true},{"title":"LMF60UU-60*90*110mm \/ 1 Pcs","offer_id":52448868663570,"sku":"GLFBHMKSHXJZC5076x1","price":405.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-01_46a2577f-59c9-4e79-93c3-444317ef221d.jpg?v=1783668860","url":"https:\/\/homediyer.com\/products\/lmf-round-flange-linear-motion-bearings-6uu-60uu","provider":"HomeDIYer","version":"1.0","type":"link"}