Easy to Use: Bore bottom bracket is suitable for securely attaching to guided shafts, built-in pillow blocks, parts and accessories for 3D printers and other machines. Very helpful in holding the driveshaft. Easy to assemble: Pillow block set with ball bearing insert for ready-to-install installation. Metal bearing kit for maintenance and replacement of accessories for 3D printers. Premium Material: Our unit bearings are made of premium zinc alloy material, sturdy and wear-, zinc alloy flange base with excellent quality and long service life. Adjustable Angle: The zinc alloy shaft bearing can be fixed between the inner bearing and the outer ring angle. Smooth running, low friction and high rigidity. Wide Application: Insert pillow bearings with high-quality components can the efficient operation of the 3D printer, and can be used in various machines such as conveyor belts, mechanical devices, machinery manufacturing, etc., which are suitable for household and industrial purposes., Weight: 0.39242282636 Pounds, Manufacturer: Jaywool