SM16-OP:Made in Japan:NB Linear Systems Nippon Bearing Linear Systems SM16-OP 16mm Bore linear motion ball bushings/bearings, inner diameter(bore)= 16mm dimensions with steel retainer, high accurace grade linear bushings, series mainly used in the USA, NB brand (Nippon Bearing Linear Systems), made in Japan. L = 37mm B = 26.5mm W = 1.6mm D = 28mm D1 = 27mm Pack#11927 dr = 16mm Pack#11927.
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