LBD8UU NB 8mm Slide Bush Ball Miniature Linear Motion BearingLBD8UU Type seals on both sides: Miniature Slide Bush Made in Japan: NB Linear Systems Nippon Bearing Miniature Linear Systems 8mm Miniature Linear Slide Bush, Retain material is resin, It is seals on both sides, bearing is a high accuracy grade Miniature linear bushings, series mainly used in the USA, NB brand (Nippon Bearing Linear Systems), made in Japan. Item: LBD8UU Bearing Type: Linear Miniature Slide Bush Number of Ball Circuits: 4 Retain