Who Is Aaron Taylor Johnson? 5 Things to Know About the Movie Star Us NB SM80GUU 80mm Slide Bush Ball Linear Motion Bearing. SM80GUU Type Seals on Both Sides: Slide Bush Made in Japan: NB Linear Systems Nippon Bearing Linear Systems 80mm Linear Slide Bush, Retainer material is resin, it is Seals on Both Sides, bearing is a high accuracy grade linear bushings, series mainly used in the USA, NB brand (Nippon Bearing Linear Systems), made in Japan. SM80GUU Bearing Linear Slide Bush Number of Ball Circuits: 6 Retainer Material: Resin Quantity: 1 Bearing Dynamic load rating Cr: 7350 N Static load rating Cor: 16000 N Major dimensions Eccentricity radial clearance dr D L B W D1 Precision High mm tolerance mm tolerance mm tolerance mm tolerance precision high 80 0 9 0 15 120 0 22 140 0 0. 4 105. 5 0 0. 4 4. 15 116 17 25 20