6903 Full Ceramic Ball Bearing, the inner diameter is 17mm, outer diameter is 30mm and the width is 7mm, Bearing is made of Ceramic.

• Item: 6903 Ball Bearing
• Type: Full Ceramic Ball Bearing
• Cage: PTFE
• Balls: ZrO2 Ceramic
• Inner/outer races: ZrO2 Ceramic
• Size: 17mm x 30mm x 7mm
• Inner Diameter: 17mm
• Outer Diameter: 30mm
• Width: 7mm
• Quantity: One Bearing
• Highest Temperature: 356 F (degrees fahrenheit) = 180 C (degrees Celsius)
• Equivalents: 61903 Bearings