KB25GUU NB Slide Bush linear Systems Ball Bearings25mm Inner DiameterNippon Bearing Linear SystemsKB25GUU linear motion ball bushings bearings, Bearing is resin retainer, Bearing inner diameter is 30mm, series mainly used in the USA, NB brand (Nippon Bearing Linear Systems), made in Japan.Item: KB25GUU BearingType: Linear Ball BushingBearing Inner Diameter: 30mmNumber of Ball Circuits: 6Retainer: ResinQuantity: One BearingDimensionsEccentricitydrDLBWD1mmtolerancemmtolerancemmtolerancemmtolerance251-11400-11680-0.352.10-0.31.8544.515