61906 Full Ceramic Ball Bearing, the inner diameter is 30mm, outer diameter is 47mm and the width is 9mm, Bearing is made of Ceramic.

• Item: 61906 Ball Bearing
• Type: Full Ceramic Ball Bearing
• Cage: PTFE
• Balls: ZrO2 Ceramic
• Inner/outer races: ZrO2 Ceramic
• Dimensions: 30mm x 47mm x 9mm/Metric
• ID (inner diameter)/Bore: 30mm
• OD (outer diameter): 47mm
• Width/Height/thickness: 9mm
• Size: 30 x 47 x 9 mm
• Quantity: One Bearing
• Highest Temperature: 356 (degrees fahrenheit) = 180 (degrees Celsius)