6203 Full Silicon Nitride Ceramic Ball Bearing, the inner diameter is 17mm, outer diameter is 40mm and the width is 12mm, these bearing is made of Si3N4 Ceramic.

• Item: Full Ceramic 6203 Ball Bearing
• Type: Full Ceramic Ball Bearing
• Inner/outer races: Si3N4 Ceramic
• Balls: Si3N4 (silicon nitride) Ceramic
• Cage: PTFE or PEEK
• Dimensions: 17mm x 40mm x 12mm
• Standard: Metric
• ID (inner diameter)/Bore: 17mm
• OD (outer diameter): 40mm
• Width/Height/thickness: 12mm
• Dimensions: 17 x 40 x 12 mm
• Quantity: One Bearing