NB SM30G 30mm Slide Bush Ball Bushings Linear Motion Bearing Inner diameter outer diameter is 7/8" and

outer diameter is 7/8" and the width is 9/32" inch

and 9mm width

Shaft Diameter: 1 11/16" Inch

7009CYP4 outer diameter is 75mm

NB SM30G 30mm Slide Bush Ball Bushings Linear Motion Bearing Inner diameter outer diameter is 7/8" andSM30G Slide Bush Made in Japan: NB Linear Systems Nippon Bearing Linear Systems 30mm Linear Slide Bush, Retainer material is resin,bearing is a high accuracy grade linear bushings,series mainly used in the USA, NB brand (Nippon Bearing Linear Systems), made in Japan. SM30G Bearing Linear Slide Bush Number of Ball Circuits: 6 Retainer Material: Resin Quantity: 1 Bearing Dynamic load rating Cr: 1,570 N Static load rating Cor: 2,740 N Major dimensions