TWD8 NB 1/2" inch Ball Bushing Adjustable Block Linear Motion
TWD8 NB Type:Slide Unit
Made in Japan:NB Linear Systems
Nippon Bearing Linear Systems
1/2" Slide Unit Pillow Block (Inch Series), the innerdiameter(bore) is 1/2" inch dimensions with steelretainer, bearing is a high accuracy grade linear bushings,series mainly used in the USA, NB brand (Nippon Bearing Linear Systems), made in Japan.