608 BEARING 6mm BB BEARING M4/8-32 ID

A 608 bearing made from 6mm Airsoft BB's. Due to the limitations in tolerances, the inside diameter is not 8mm, the largest I could make work were M4 or 8-32 screws.

M4 Bearing Dimensions 4mm x 22mm x 7mm
8-32 Bearing Dimensions 4.5mm x 22mm x 7mm

Print at .1mm, airsoft bb's will fit, just push up on one side and angle the inner track up on one side while snapping in the last few bb's. Once you get about 4 bb's in, the bearing should stay together on it's own. Should fit a total of 7 6mm airsoft bb's. Breaking bearing in by rolling it on a surface with a bit of friction. It only took me a couple rotations before the bearing was spinning freely.

Note - The M4 and 8-32 Outer tracks are identical. I just uploaded it under both in order to cut down on confusion.