Wholesale 638 Full Ceramic Si3N4 Bearings 8x28x9 Miniature-Pack of 20 Outer Diameter - 2 13/16 inch (2.8125") the NU321 outer diameter is

the NU321 outer diameter is 225mm

W210PP4 Agricultural Bearing

FHSPFZ207-35mm Flange Pressed Steel 3 Bolt Ball Bearing

Size: 200 x 250 x 24 mm

Wholesale 638 Full Ceramic Si3N4 Bearings 8x28x9 Miniature-Pack of 20 Outer Diameter - 2 13/16 inch (2.8125") the NU321 outer diameter is638 Full Ceramic Ball Bearing Silicon Nitride 8x28x9 Pack of 20 Bearings 638 Full Ceramic Ball Bearing, measures an inner diameter of 8mm, outer diameter is 28mm and the width is 9mm, a standard bearing size commonly used in a variety of industrial and commercial applications, Bearing is made from Ceramic. 638 Ball Bearing Full Ceramic Ball Bearing Cage Material: PTFE (Polytetrafluoroethylene) Balls: Si3N4 Ceramic (Silicon Nitride) Inner outer races: