R6 Full Ceramic Ball Bearing, the inner diameter is 3/8" inch, outer diameter is 7/8" inch and the width is 9/32" inch, Bearing is made of Ceramic.

• Item: R6 Ball Bearing
• Type: Full Ceramic Ball Bearing
• Cage: PTFE
• Balls: ZrO2 Ceramic
• Inner/outer races: ZrO2 Ceramic
• Size: 3/8" x 7/8" x 9/32" inch
• Inner Diameter: 3/8" inch
• Outer Diameter: 7/8" inch
• Width: 9/32" inch
• Quantity: One Bearing
• Highest Temperature: 356(degrees fahrenheit)=180(degrees Celsius)