Linear Ball Bearing Low Friction for 3D Printer CNC

1 LOW FRICTION: The set contains 2 pieces linear motion bearings, which allows linear motion with minimal frictional resistance. 2 HIGH PRECISE MOVEMENT: The linear motion ball bearing can achieve high precise and smoothly movement with light loads. 3 RUBBER SEALED: The ball bearing is sealed with two rubber, which is dust proof and waterproof, prevent the entry of foreign objects. 4 LONG SERVICE LIFE: Made of excellent quality bearing steel, through special heat treatment process, greatly increased the service life. 5 LINEAR MOTION PART: The bearing is part of linear motion system, can be used with cylindrical shaft or guide rail for 3D printer and CNC machine.

What's in the box
2 x Linear Motion Bearing