Description Machifit LM8UU 8mm Linear Ball Bearing Linear Bushing for CNC RouterSpecification Model LM8UUShaft ID 8mmShaft OD 15mm Features 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 Package Included 1 x LM8UU Ball Bearing BushingMore Details