NB SM150 150mm Slide Bush Ball Bushings Linear Motion BearingsSM150 Type: Slide Bush Made in Japan: NB Linear Systems Nippon Bearing Linear Systems 150mm Linear Slide Bush, bearing is a high accuracy grade linear bushings,series mainly used in the USA, NB brand (Nippon Bearing Linear Systems), made in Japan. Item: SM150 Bearing Type: Linear Slide Bush Number of Ball Circuits: 8 Quantity: One Bearing Dynamic load rating Cr: 21,100 N Static load rating Cor: 54,300 N Major dimensions Eccentricity radial clearance