LBD12UUAJ NB 12mm Slide Bush Ball Miniature Linear Motion BearingLBD12UUAJ Type Seals on Both Sides: Slide Bush Clearance Adjustable Made in Japan: NB Linear Systems Nippon Bearing Linear Systems LBD12UUAJ Linear Slide Bush, Retainer Material is resin, bearing is Seals on Both Sides and Clearance Adjustable, bearing is a high accuracy grade linear bushings, series mainly used in the USA, NB brand (Nippon Bearing Linear Systems), made in Japan. Item: LBD12UUAJ Bearing Type: Linear Slide Bush Shaft Diameter: 12mm