Specification Brand : TEN-HIGH BulletPoint1 : The material is the 45# high quality steel, Extend the service life of the shaft and the machine. BulletPoint2 : The shaft is case hardened, If you use normal steel shaft,The bearings will be reduce in use process BulletPoint3 : Metal linear bearing, it's more durable than Plastic linear bearing. BulletPoint4 : high precision and easy to mount & dismount. BulletPoint5 : Move smoothly without deflection, minimal wear and low noise. Color : 1000MM ExternallyAssignedProductIdentifier : 6180551498472 ExternallyAssignedProductIdentifier1 : 634140059637 ExternallyAssignedProductIdentifier2 : 0634140059637 ItemName : TEN-HIGH Linear Rail CNC Parts SBR12 12mm, 1000mm 39.37inch Fully Supported Linear Rail+2pcs SBR12UU BlockBearing Block Bearing ItemPackageDimensions_Height : 101.092 centimeters ItemPackageDimensions_Length : 5.08 centimeters ItemPackageDimensions_Width : 5.08 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : linear-motion-guides Manufacturer : TEN-HIGH Material : Carbon Steel ModelNumber : TH-LR12-L1000mm NumberOfItems : 1 NumberOfPieces : 1 PartNumber : TH-LR12-L1000mm ProductDescription : Brand:TEN-HIGH Model:SBR12 Shaft diameter: 12mm This item include: 1pcs 12mm 1000mm linear rail 2pcs SBR12UU BlockBearing Please Note: WE CAN OFFER THE SBR SUPPORTED LINEAR RAIL IN ANY LENGTH ProductSiteLaunchDate : 2014-11-10T08:00:00Z Size : 1000 Style : SBR12 SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 24102000