Features Improved Performance: These solid polymer LM8UU bearings eliminate vibration and unnecessary noise, enhancing the precision and smoothness of your 3D printer's movements. Enhanced Smoothness: When lubricated, these bearings offer even better smoothness, ensuring and reliable printing results. Direct Replacement: This solid polymer linear bearing is a hassle- replacement for metal LM8UU bearings, guaranteeing a seamless upgrade for your 3D printer. Versatile Application: Commonly used in various 3D printers and small-scale manufacturing, these bearings are ideal for RepRap, Prusa, Mendel, and more. Reliable Quality: Designed specifically for 3D printers, these solid polymer LM8UU bearings are a dependable choice for consistent performance and durability. Features: 1、These solid polymer LM8UU bearings can eliminate vibration and unnecessary noise 2、If you add the lubricating oil, the smooth degree will be better 3、This sold polymer Linear bearing is a direct replacement for the metal LM8UU bearing 4、Commonly used in many 3D Printers, etc small making use(Large machines are not recommended) 5、These solid polymer LM8UU bearings are great for RepRap, for Prusa, for Mendel, etc Specification: Features: These solid polymer LM8UU bearings can eliminate vibration and unnecessary noise. If you add the lubricating oil, the smooth degree will be better. This sold polymer Linear bearing is a direct replacement for the metal LM8UU bearing. Commonly used in many 3D Printers, etc small making use(Large machines are not recommended). These solid polymer LM8UU bearings are great for RepRap, for Prusa, for Mendel, etc. Specification: Model: LM8UU External diameter: 16mm/0.63inch Inner diameter: 0.8cm/0.31inch Length: 25mm/0.98inch Purpose: 3D printer Weight: 35g Oil lubrication method: drip lubrication(lubrication not included) Package Included: 8 x Solid Polymer LM8UU Bearing Package List