TWD12UU Type:Slide Unit Pillow Block Made in Japan:NB Linear Systems Nippon Bearing Linear Systems 3/4" Slide Unit Pillow Block (Inch Series), the inner diameter(bore) is 3/4" 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. * Item: TWD12UU Bearing * Type: Linear ball bushing * Quantity: One Bearing * Dynamic load rating Cr: 470 LBF * Static load rating Cor: 590 LBF Major dimensions Mounting dimensions Shaft diameter inch h E W L F T G M h1 B C S .937" 1.375" 2.75" 1.875" 1.535" .315" .937" 1.12" .386" 2.375" 1.25" .188" 3/4"