NB SW6 3/8 Ball Bushings Linear Motion Outer Diameter - 4 1/4 inch (4.25") 6806DDU is sealed and self

6806DDU is sealed and self lubricated with grease

NJ309EG Nachi Cylindrical Roller Bearing

Size: 17 x 62 x 17 mm

SMK12GUU Bearing

Load rating Cw: 4

NB SW6 3/8 Ball Bushings Linear Motion Outer Diameter - 4 1/4 inch (4.25") 6806DDU is sealed and selfSW6: Made in Japan: NB Linear Systems Nippon Bearing Linear Systems 3 8" Bore linear motion ball bushings bearings, inner diameter(bore)= 3 8" inch dimensions with steel retainer, bearing is high accuracy grade linear bushings, series mainly used in the USA, NB brand (Nippon Bearing Linear Systems), made in Japan. SW6 Linear Motion Ball Bushings NB Systems Ball Bushings Linear Motion Size: 3 8" x 5 8" x 7 8" inch Inner Diameter: 3 8" inch Outer