Features Practical Retainer Structure: Utilizes a steel wire retainer structure to effectively prevent steel balls from falling off, ensuring practicality and safety. Position and Automatic Aligning Ability: Features high position accuracy and a comprehensive ing system, providing high load bearing capacity and automatic aligning ability. Replaced Respectively: Operates at high speed with low noise, ensuring fluent sliding without sticking. The slider, guide rail, or linear guide rail group can be replaced respectively to regain the guide. Low Friction and Burr : Offers low friction, flexibility, burr- s, and simple installation, making it beginner-friendly. Made of Bearing Steel Material: Constructed from bearing steel, making it ideal for 3D printing, wind, solar, CNC, robot, automation, and other equipment. Features: 1、PRACTICAL RETAINER STRUCTURE: Linear motion block is using steel wire retainer structure, effectively prevent steel balls falling off. Practical and safe. 2、POSITION AND AUTOMATIC ALIGNING ABILITY: Linear motion bearing block adopts high position accuracy and comprehensive ing system. With high load bearing capacity and automatic aligning ability. 3、REPLACED 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. 4、LOW FRICTION AND BURR : Linear motion block has low friction and is flexible, no burr and simple to install, friendly to novices. 5、MADE OF BEARING STEEL MATERIAL: Bearing slide block is made of bearing steel, which is for 3D printing, wind, solar, CNC, robot, automation and other equipment. Specification: Item Type: 3D Printing Bearing Slide Block Material: Bearing Steel Use: Widely used in various industrial fields such as machine tools, engineering machinery, robots, reducers, steel, metallurgy, textile, mining, printing, etc. Package List: 1 x Linear Motion Rail Bearing Block Package List 1 x Linear Motion Rail Bearing Block