Inside Diameter = 3mm
Outside Diameter = 8mm
Thickness = 4mm
Model Number: RB-09M128
Weight:0.01 Flange ID ball bearing
Ball Bearing with Flange - 3mm ID (pair)
These bearings are perfect for adding to our older servo hinges, or your cool design. By enlarging the small hole on the older servo brackets, the ball bearing assembly can be added with ease. Adding this ball bearing assembly improves the performance of the older servo brackets, making them virtually friction-free.