| http://www.w3.org/ns/prov#value | - SWF8GUU NB 1/2 Bore linear motion ball bushings/bearings, bearing has seals on both sides, the inner diameter(bore) is 1/2 inch dimensions with resin retainer, bearing is a high accuracy grade linear bushings, series mainly used in the USA, NB brand (Nippon Bearing Linear Systems), made in Japan.
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