4,5mm BB bearing how to - SketchUp by MilanGajic 3d model
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4,5mm BB bearing how to - SketchUp by MilanGajic

4,5mm BB bearing how to - SketchUp by MilanGajic

by Thingiverse
Last crawled date: 3 years ago
I tried making some berrings using 4,5mm airgun BB's.
I included a video of how I made the bearing: https://youtu.be/ymC9LT3nthI
It works pretty well.
For 4,5mm BB's you need to make a 5mm channel. My first try was 4,7mm and the balls are so tight that it is as stiff as a rock.
I know the barrings from china cost less than the time I put in, but this seems like a quick way to make costom bearrings on the fly. You could for example make a square mounting plate with an integrated custom size bearing.

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