R20 Full Ceramic Ball Bearing, the inner diameter is 1 1/4" Inch, outer diameter is 2 1/4" Inch and the width is 1/2" Inch, Bearing is made of Ceramic.

• Item: R20 Ball Bearing
• Type: Full Ceramic Ball Bearing
• Cage: PTFE
• Balls: Si3N4 Ceramic (Silicon Nitride)
• Inner/outer races: Si3N4 Ceramic (Silicon Nitride)
• Dimensions: 1 1/4" x 2 1/4" x 1/2" inch
• Bearing Inner Diameter: 1 1/4" inch
• Bearing Outer Diameter: 2 1/4" inch
• Bearing Width: 1/2" inch
• Size: 1 1/4" x 2 1/4" x 1/2" inch
• Quantity: One Bearing