5 x 11 x 4 Full Ceramic Silicon Nitride Ball Bearing, the inner diameter is 5mm, outer diameter is 11mm and the width is 4mm, Bearing is made of Ceramic.

• Item: 5 x 11 x 4 Ball Bearing
• Type: Full Ceramic Ball Bearing
• Cage: PTFE
• Inner/outer races: Si3N4 Ceramic
• Balls: Si3N4 Ceramic (Silicon Nitride)
• Size: 5mm x 11mm x 4mm
• Inner Diameter: 5mm
• Outer Diameter: 11mm
• Width: 4mm
• Quantity: One Bearing