Feature 1Smoother Surface: All the 10pcs linear motion bearing have smooth surface to ensure stable operation with high accuracy and low friction. 2Standard Designs: Designed to have 6mm inner diameter, 12mm outer diameter and 19mm length, the standard design enables perfect fitting. 3Wide Application: Allows for wide using on industrial automation equipment, stepper motor guide rails, 3D printers, engraving machine, etc. 4Good Alloy Steel: Mainly made of premium alloy steel material, the linear bearing is not likely to deform, very durable for long term use. 5Quick to Install: Light in weight and compact in size as well, the bushing bearing can be conveniently installed within several minutes.SpecificationItem Type: Linear Motion BearingModel: LM6UUMaterial: Alloy SteelInner Diameter: Approx. 6mm / 0.24inOuter Diameter: Approx. 12mm / 0.47inHeight: Approx. 19mm / 0.75inUse: The products are widely used in various industrial fields such as machine tools, construction machinery, robots, speed reducers, steel, metallurgy, textiles, mining, printing, aerospace, and so on. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List10 x Linear Motion Bearing