They are designed to simplify mounting on CNC machines, 3D printers, and industrial gantry systems. The housing and internal bearing (LM16UU-OP) have an opening at the bottom to clear shaft support rails. Includes four pre-drilled and tapped M5 holes for easy mounting and rubber seals on both ends to keep out dust and debris. Material: Bearing Steel Used in CNC machines, linear stages, 3D printers and other devices that utilize 16mm diameter linear shafts.
