{"product_id":"the-linear-standard-sbr-linear-bearing-blocks","title":"The Linear Standard | SBR Linear Ball Bearing Block Set for CNC","description":"\u003cdiv class=\"product-narrative\"\u003e\n\u003cp\u003ePrecision Starts with the Part That Slides. A CNC router is only as accurate as the bearing that carries its axis, and a cheap block introduces play that no amount of software compensation removes. The Linear Standard is an SBR open linear motion bearing unit with an aluminium housing and a caged ball race, built for smooth travel, low friction and high rigidity.\u003c\/p\u003e\n\u003cp\u003eFive bores cover the common range: 10mm, 12mm, 16mm, 20mm and 25mm, matched to the SBR guide rails of the same diameter. The open profile lets the block mount over a supported rail so the load path runs closer to the frame. Manufactured from aluminium with a hardened bearing surface, the blocks are economical to replace and simple to maintain, which is the reason the format is standard across hobby CNC and light industrial machinery alike.\u003c\/p\u003e\n\u003cp\u003eApplications reach beyond the router table. Linear motion blocks show up in pumps, packaging equipment, automotive components, construction machinery and low-noise high-speed motor assemblies, anywhere a load has to travel in one direction and stay in line. Four blocks per set is the working quantity for one axis on a typical build.\u003c\/p\u003e\n\u003cp\u003eA linear block performs to the standard of the rail it runs on. A worn or scored rail will transfer its imperfections straight into the cut, and a rail that is not parallel to its partner will bind the gantry no matter how good the bearing is. Before fitting, wipe the rail down with a lint-free cloth and a light oil, then slide the block along the full length by hand to feel for tight spots. Four blocks per set cover one axis on a typical router build, two per rail, with the load shared between them rather than carried by a single unit.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAccuracy is not a setting. It is a component.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003chr style=\"margin:20px 0;border:0;border-top:1px solid #eee;\"\u003e\u003cdiv class=\"product-features\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✦ SBR open linear motion bearing blocks, four per set\u003c\/li\u003e\n\u003cli\u003e✦ Bores of 10, 12, 16, 20 and 25mm to match SBR rails\u003c\/li\u003e\n\u003cli\u003e✦ Aluminium housing with a caged ball bearing race\u003c\/li\u003e\n\u003cli\u003e✦ Smooth travel with low friction and high rigidity\u003c\/li\u003e\n\u003cli\u003e✦ Open profile for mounting over supported rail\u003c\/li\u003e\n\u003cli\u003e✦ Economical to replace and straightforward to maintain\u003c\/li\u003e\n\u003cli\u003e✦ Suits CNC routers, automation, pumps and machinery\u003c\/li\u003e\n\u003cli\u003e✦ Manufactured under the CNCCANEN brand\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul style=\"list-style: none; padding: 0;\"\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eModels:\u003c\/strong\u003e SBR10UU, SBR12UU, SBR16UU, SBR20UU, SBR25UU\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 10 mm, 12 mm, 16 mm, 20 mm, 25 mm\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminium housing with ball bearing slide\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Open linear motion bearing slide unit\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eSet Size:\u003c\/strong\u003e 4 blocks\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eMotion:\u003c\/strong\u003e Smooth, low friction, high rigidity, long service life\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eMaintenance:\u003c\/strong\u003e Economical and simple to replace\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e CNCCANEN\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eTypical Use:\u003c\/strong\u003e CNC routers, industrial machinery, pumps, automotive components\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eRail Compatibility:\u003c\/strong\u003e SBR guide rails of matching diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-applications\"\u003e\n\u003ch3\u003eWhere It Belongs\u003c\/h3\u003e\n\u003cp\u003eThe primary use is the moving axis of a CNC router or a laser cutter, where the block carries the gantry and the accuracy of every cut depends on how little it shifts under load. Beyond that, the format is the default for automation work: linear actuators, sliding doors, packaging machines and test rigs. Maintenance teams use them as replacements in pumps and machinery where an existing rail is sound and only the block has worn. Anyone building a custom machine gets a standardised part with predictable dimensions rather than a proprietary carriage.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-detail\"\u003e\n\u003ch3\u003eSetup and Maintenance\u003c\/h3\u003e\n\u003cp\u003eKeep the ball race lightly lubricated and the rail clean; grit is what shortens bearing life, not load. Re-check the mounting bolts after the first few hours of running, since a new machine settles as it cuts. Where a block is being replaced rather than installed new, measure the rail diameter before ordering instead of assuming it matches the block that came out. Blocks and rails are matched by bore, and a half-millimetre of mismatch will show as play at the tool.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-faq\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I choose the right bore size?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMatch the block to the diameter of your SBR guide rail. A 16mm rail takes an SBR16UU, a 20mm rail takes an SBR20UU, and so on.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What material are the blocks made of?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAn aluminium housing with a caged ball bearing race and a hardened bearing surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many blocks are in the set?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFour, which is the working quantity for one axis on a typical build.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I mix bore sizes in one order?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach listing option carries a single bore size. For a machine using different rail diameters on different axes, order the matching size for each.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do they need lubrication?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Keep the ball race lightly oiled or greased and wipe the rail before fitting. Clean rails are the main factor in bearing life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What are these used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCNC routers, automation equipment, packaging machinery, pumps, automotive components and other applications where a load has to travel in a straight line.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How often should I lubricate the blocks?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLightly oil or grease the race at each service interval, and wipe down the rail before every session. Cleanliness matters more than the choice of lubricant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I replace a worn block on an existing machine?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, provided the rail is still sound. Measure the rail diameter to confirm the bore size, then fit the matching SBR block.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-gallery\" style=\"margin-top:30px;text-align:center;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/H774f8decc3d648c0bb81d591dff826b95.webp?v=1765858550\" alt=\"The Linear Standard | SBR Linear Ball Bearing Block Set for CNC\" style=\"max-width:100%;height:auto;margin:6px 0;border-radius:6px;\" loading=\"lazy\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S44d1efb5adb045b894d837385250def8z.webp?v=1765858550\" alt=\"The Linear Standard | SBR Linear Ball Bearing Block Set for CNC\" style=\"max-width:100%;height:auto;margin:6px 0;border-radius:6px;\" loading=\"lazy\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S8da00c0a666f4f6c9472b975b52b6e7bx.webp?v=1765858550\" alt=\"The Linear Standard | SBR Linear Ball Bearing Block Set for CNC\" style=\"max-width:100%;height:auto;margin:6px 0;border-radius:6px;\" loading=\"lazy\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/H7f66f58799c94ebcb08ebbdee457bd26R.webp?v=1765858550\" alt=\"The Linear Standard | SBR Linear Ball Bearing Block Set for CNC\" style=\"max-width:100%;height:auto;margin:6px 0;border-radius:6px;\" loading=\"lazy\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/H7cc18b43d7fc436dabb9403adeb7c6fdU.webp?v=1765858550\" alt=\"The Linear Standard | SBR Linear Ball Bearing Block Set for CNC\" style=\"max-width:100%;height:auto;margin:6px 0;border-radius:6px;\" loading=\"lazy\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/H7200e18e62fa49ba936d3ef49dacd78aY.webp?v=1765858550\" alt=\"The Linear Standard | SBR Linear Ball Bearing Block Set for CNC\" style=\"max-width:100%;height:auto;margin:6px 0;border-radius:6px;\" loading=\"lazy\"\u003e\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"Product\", \"name\": \"The Linear Standard | SBR Linear Ball Bearing Block Set for CNC\", \"description\": \"Four SBR open linear motion ball bearing blocks in 10, 12, 16, 20 and 25mm bores for CNC routers, automation and general machinery.\", \"brand\": {\"@type\": \"Brand\", \"name\": \"EastSupplier\"}, \"sku\": \"4000764607910-GERMANY-SBR20UU\", \"image\": [\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/H774f8decc3d648c0bb81d591dff826b95.webp?v=1765858550\", \"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S44d1efb5adb045b894d837385250def8z.webp?v=1765858550\", \"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S8da00c0a666f4f6c9472b975b52b6e7bx.webp?v=1765858550\", \"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/H7f66f58799c94ebcb08ebbdee457bd26R.webp?v=1765858550\", \"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/H7cc18b43d7fc436dabb9403adeb7c6fdU.webp?v=1765858550\", \"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/H7200e18e62fa49ba936d3ef49dacd78aY.webp?v=1765858550\"], \"url\": \"https:\/\/eastsupplier.com\/products\/the-linear-standard-sbr-linear-bearing-blocks\", \"offers\": {\"@type\": \"Offer\", \"url\": \"https:\/\/eastsupplier.com\/products\/the-linear-standard-sbr-linear-bearing-blocks\", \"priceCurrency\": \"USD\", \"price\": \"21.22\", \"availability\": \"https:\/\/schema.org\/InStock\", \"seller\": {\"@type\": \"Organization\", \"name\": \"EastSupplier\"}}, \"aggregateRating\": {\"@type\": \"AggregateRating\", \"ratingValue\": \"4.75\", \"reviewCount\": \"4\", \"bestRating\": \"5\", \"worstRating\": \"1\"}}\u003c\/script\u003e","brand":"East Supplier Platform","offers":[{"title":"GERMANY \/ SBR20UU","offer_id":48262054772959,"sku":"4000764607910-GERMANY-SBR20UU","price":40.1,"currency_code":"USD","in_stock":true},{"title":"GERMANY \/ SBR16UU","offer_id":48262054838495,"sku":"4000764607910-GERMANY-SBR16UU","price":35.38,"currency_code":"USD","in_stock":true},{"title":"GERMANY \/ SBR12UU","offer_id":48262054871263,"sku":"4000764607910-GERMANY-SBR12UU","price":21.22,"currency_code":"USD","in_stock":true},{"title":"Russian Federation \/ SBR16UU","offer_id":48262055493855,"sku":"4000764607910-Russian Federation-SBR16UU","price":33.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/H774f8decc3d648c0bb81d591dff826b95.webp?v=1765858550","url":"https:\/\/eastsupplier.co.uk\/fr\/products\/the-linear-standard-sbr-linear-bearing-blocks","provider":"EastSupplier Platform","version":"1.0","type":"link"}