Feature 1PRACTICAL RETAINER STRUCTURE: Linear motion block is using steel wire retainer structure, effectively prevent steel balls falling off. Practical and safe. 2POSITION AND AUTOMATIC ALIGNING ABILITY: Linear motion bearing block adopts high position accuracy and comprehensive sealing system. With high load bearing capacity and automatic aligning ability. 3REPLACED RESPECTIVELY: Our linear motion rail bearing block is in high speed and low noise, also fluent sliding without sticking. The slider or guide rail or even the linear guide rail group can be replaced respectively to regain the guide. 4LOW FRICTION AND BURR FREE: Linear motion block has low friction and is flexible, no burr and simple to install, friendly to novices. 5MADE OF BEARING STEEL MATERIAL: Bearing slide block is made of bearing steel, which is perfect for 3D printing, wind, solar, CNC, robot, automation and other equipment.SpecificationItem Type: 3D Printing Bearing Slide BlockMaterial: Bearing SteelUse: Widely used in various industrial fields such as machine tools, engineering machinery, robots, reducers, steel, metallurgy, textile, mining, printing, etc. .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 List1 x LinearMotionRailBearingBlock