Summary

I had some extra 1/8" steel ball bearings and needed a small bearing for a 3D print project I was working on so I created my own design. The inner diameter is 10mm (STL file has a round inner opening) and the outer is 21.4mm. The height is 5mm. It fits 15 - 1/8" ball bearings.

When assembling the bearing, the 2 center pieces will snap together but you will have to add a drop of super glue to secure it.

Please post your photos of how you’re using the bearing. Enjoy.

Update 7/11/20:
I added a second stl file for a modified bearing used on a gearbox design. This second one has tabs on the outer ring and a hex hole.

Print Settings

Printer:

Monoprice Maker Select Plus

                                            <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>0.1mm</p></div></p>                                                                    <strong>Filament:</strong> Amazon Basics PLA                any                    <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>0.15mm resolution is ok too</p></div>

1/8" 0.125” ball bearing

1/8" 0.125” ball bearing

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