SMK80UU Square Flange Type Slide Bush Made in Japan:NB Linear Systems Nippon Bearing Linear Systems. SMK80UU Square Linear Slide Bush, The retainer material is steel, It is seals on both sides, series mainly used in the USA, NB brand (Nippon Bearing Linear Systems), Made in Japan. X x Y x Z. 11 x 17 x 13.1.The item "SMK80UU NB 80mm Slide Bush Bushings Motion Linear Ball Bearing Made in Japan" is in sale since Friday, December 13, 2013. This item is in the category "Business & Industrial\Automation, Motors & Drives\Mechanical Power Transmission\Bearings & Bushings\Other Bearings & Bushings". The seller is "irvineman" and is located in Anaheim, California. This item can be shipped worldwide.