Description : LM8UU 8mm Linear Ball Bearing Bush Bushing Steel for CNC Router Mill Machine Specification : Brand new and excellent quality material. Linear bearing ball cage, hardened coat of both ends ring. Made of carbon chromium bearing steel, safe and reliable. Ball in the cage loop to run a smooth ball guide surface to ensure stability even if high-speed. Model : LM8UU Shaft ID : 8mm Shaft OD : 15mm Reference Parameters : Package Includes : 1 x LM8UU Ball Bearing Details Pictures :