SWK8UU Seals on both Sides Square Flange Type Nippon Bearing Linear Systems Made in Japan SWK8UU 1/2" Bore linear motion ball bushings/bearings, SWK8UU is Seals on both Sides, the inner diameter(bore) is 1/2" inch dimensions with steel retainer, bearing is a high accuracy grade linear bushings, series mainly used in the USA, NB brand (Nippon Bearing Linear Systems), made in Japan. Dimensions (inch) dr D L Df t P.C.D. X Y Z 1/2" 7/8" 1-1/4" 1-3/4" 1/4" 1-5/16" 3/16" 19/64" 0.172
