Silicon Nitride Full Ceramic Ball Bearings, the inner diameter is 5, outer diameter is 10 and the width is 4, this is a popular size that could be used in many applications, Bearing is made of Ceramic.

• Item: Ball bearings
• Type: Full Ceramic
• Balls: Si3N4 Ceramic (Silicon Nitride)
• Cage: PTFE
• Dimensions: 5*10*4 mm/Metric
• ID (inner diameter)/Bore=5mm
• OD (outer diameter)=10mm
• Width/Height/thickness=4mm
• Size: 5mm x 10mm x 4mm
• Inner/outer races: Si3N4 Ceramic (Silicon Nitride)
• Quantity: One ball bearing