Specification Brand : Nurnesy BulletPoint : 5pcs LM8UU Ball Bearings 8mm Bushing 3D Printers Parts Rail Linear Long Rod Shaft Part 8mmx15mmx24mm Aluminum Bush BulletPoint1 : Bearings have a 8mm inner diameter, a 15mm outer diameter, and a 45mm length BulletPoint2 : There comes total 6 pieces bearings which you may use for many different projects BulletPoint3 : These are great for small hobby 8mm shaft/rod projects such as 3D printer, engraving machine BulletPoint4 : These liner-motion bearings are made of high quality bearing steel for low noise and long service life BulletPoint5 : Package Includes: 6 x Bearings Color : #911 ExternallyAssignedProductIdentifier : 5281251516518 IncludedComponents : No ItemName : 6 Pieces LM8LUU Long Linear Motion Ball Bearings for 8mm Rod 3D Printer CNC Parts ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 14 centimeters ItemPackageDimensions_Width : 10 centimeters ItemTypeKeyword : linear-ball-bearings Manufacturer : Nurnesy Material : Alloy Steel ModelName : Eujgoov1kug5ewgzn-11 ModelNumber : Nurnesyxma6o9q712 NumberOfItems : 1 PartNumber : Nurnesyxma6o9q712 ProductDescription : Specifications: Type: LM8LUU Material: Bearing steel Inner Diameter: 8mm / 0.31 Outer Diameter: 15mm / 0.59 Length: 45mm / 1.77 Quantity: 6pcs