General description The Pack of 4 Ball Bearings features 20mm Pillow Block Bearings made from durable zinc alloy, ensuring strength, wear resistance, and longevity. This set is designed for easy installation and adjustable performance, making it suitable for various applications. Technical specifications Material: Zinc alloy Inner diameters available: 10mm and 20mm Type: Flange bore self-support mounted bearings Installation Easy to install with a two-hole body and ball bearing insert for ready-to-assemble installation Locking ring adjustment screw for secure attachment to the driven shaft Usage Suitable for aerospace, industrial automation, compressors, machinery, printing machines, and more Facilitates maintenance and replacement of 3D printer parts