7801AC 25 degrees contact angle Ball Bearing, the inner diameter is 12mm, outer diameter is 21mm and the width is 5mm, this is a popular size that could be used in many applications.

• Item: 7801AC Ball bearing
• Type: Angular Contact
• Cage: Nylon
• Dimensions: 12mm x 21mm x 5mm/Metric
• ID (inner diameter)/Bore=12mm
• OD (outer diameter)=21mm
• Width/Height/thickness=5mm
• Quantity: One ball bearing
• AC = 25 degree contact angle
• Size: 12 x 21 x 5 mm