30-Pack Full Ceramic 639 ZrO2 Miniature Ball Bearings 9x30x10mm

Wholesale 639 Full Ceramic Ball Bearing, measures an inner diameter of 9mm, outer diameter is 30mm and the width is 10mm.

• 639 Ball Bearing
• Type:Full Ceramic Ball Bearing
• Brand: VXB
• Cage Material: PTFE (Polytetrafluoroethylene)
• Balls: Made from Zirconia Ceramic (ZrO₂)
• Races Material: Zirconia (ZrO₂) Ceramic
• Dimensions: 9mmx30mmx10mm
• Inner Diameter: 9mm
• Outer Diameter: 30mm
• Width: 10mm
• Quantity: 30 Bearings