1 STANDARD SIZE: LM30UU linear cylindrical motion ball bearing, with 30mm inner diameter, 45mm outer diameter and 64mm length, stable and durable. 2 BEARING STEEL: Using excellent bearing steel, with special heat treatment process, has high hardness, wear and corrosion resistance, and long service life. 3 HIGH PERFORMANCE: These linear motion ball bearing features low noise, high rotational speed, high accuracy, low friction and good rotational performance. 4 WIDE APPLICATION: These LM30UU linear ball bearings provide accurate low friction linear motion and are widely used in 3D printers and CNC machines. 5 GLOSSY FINISH: The ball bearing has a glossy appearance, no burrs and no gaps, and will not hurt hands or scratch other accessories when using.
What's in the box
2 x Linear Bearing
