61904 Full Ceramic Ball Bearing, the inner diameter is 20mm, outer diameter is 37mm and the width is 9mm, this is a popular size that could be used in many applications, Bearing is made of Ceramic.

• Item: 61904 Ball Bearing
• Type: Full Ceramic Ball Bearing
• Inner/outer races: SiC Ceramic
• Balls: SiC Ceramic
• Cage: PTFE
• Dimensions: 20mm x 37mm x 9mm/Metric
• ID (inner diameter)/Bore: 20mm
• OD (outer diameter): 37mm
• Width/Height/thickness: 9mm
• Size: 20 x 37 x 9 mm
• Quantity: One Bearing