Specification Brand : CNCMANS BulletPoint1 : PAKAGE: This linear rail set includes 2x SBR20-600mm linear rails, 4x SBR20UU bearing blocks, 1x 4mm wrench, 1x M6*12mm Locking Handle ( adjusting the tightness of the slider block ), 16x M6*20mm screws (connecting the sliding bearing blocks and plates ). BulletPoint2 : MATERIAL: The guide rail is made of high-quality carbon steel, the bearing slider block is made of bearing steel with aluminum alloy housing, thickened material is not easy to damage; More steel bearing balls, low friction, light and flexible, smooth and unimpeded, longer service life. BulletPoint3 : DESIGN: Adopt four-point contact design, which can withstand loads evenly in all directions and self-aligning function, can absorb the assembly error of the mounting surface, with high precision under high load. BulletPoint4 : INSTALL: Aluminum alloy support with pre-drilled holes for ease of mounting. Conveniently install the bearing block by aligning the track with the mouth of the slide rail and pushing the bearing block until the it completely falls. BulletPoint5 : APPLICATIONS: This Linear Guide Rail can help build an linear motion system. Widely used for DIY CNC routers, grinding machine, lathes, mills, machine tools, laser welding machines, punch, automatic cutting machine, printer, X-Y table, etc. Color : Silver ExternallyAssignedProductIdentifier1 : 730759056491 ExternallyAssignedProductIdentifier2 : 0730759056491 ItemForm : Rod ItemName : CNCMANS SBR20-600mm Linear Rail Linear Rails and Bearings Kit 2Pcs SBR20 600mm Long Fully Supported Shaft Guide with 4Pcs SBR20UU Linear Bearing Slide Block Linear Guide for CNC Equipments ItemPackageDimensions_Height : 78.74 centimeters ItemPackageDimensions_Length : 7.62 centimeters ItemPackageDimensions_Width : 7.62 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular Prism ItemTypeKeyword : linear-motion-guides Manufacturer : CNCMANS Material : Carbon Steel Material1 : Aluminum Material2 : Alloy Steel Material3 : Carbon Steel ModelNumber : 12445QT20GF1KX35MPZEE NumberOfItems : 1 PackageLevel : unit PartNumber : 12445QT20GF1KX35MPZEE ProductDescription : CNCMANS has been committed to providing superior 3D printers and accessories services.The linear track is uniformly stressed, sliding smoothly, made of carbon steel, corrosion-resistant,and high-temperature resistant.The linear bearing can travel infinitely together with the cylindrical shaft. Because of pointcontact between ball and straight axis, so the load is small. The ball is spinning with the smallestfriction, it can run a high precision and smooth motion.Flange linear bearings can be divided into:round flange type, oval flange, guide wheel flange, guide the oval flange type, plus long roundflange type.The shaft is case hardened. If you use normal steel shafts, the bearings will cut them up in notime. So make sure what you buy is case hardened!Specifications:Brand: CNCMANSModel: SBR20Shaft Diameter: 20mmSBR20 Linear Rail Kits Includes:2x SBR20-600mm Linear Slide Guide Rails4x SBR20UU Bearing BlocksFeatures:Steel material and hardened caseHigh accuracy and strong durabilitySmooth moving, low friction, high rigidity and long working lifeSuits X, Y, Z axis,perfect items for your CNC project ProductSiteLaunchDate : 2021-12-09T07:13:15.902Z Size : 600mm Style : SBR20 SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 24102000