4 x 8 x 3 Full Ceramic Ball Bearing, the inner diameter is 4mm, outer diameter is 8mm and the width is 3mm, Bearing is made of Ceramic.

• Item: 4 x 8 x 3 Ball Bearing
• Type: Full Ceramic Ball Bearing
• Cage: PTFE
• Closures: PTFE Covers (white)
• Balls: ZrO2 Ceramic (zirconia)
• Inner/outer races: ZrO2 Ceramic
• Dimensions: 4mm x 8mm x 3mm/Metric
• ID (inner diameter)/Bore: 4mm
• OD (outer diameter): 8mm
• Width/Height/thickness: 3mm
• Size: 4 x 8 x 3 mm
• Quantity: One Bearing