Summary

Do you want a spinner that will go for 12 minutes + easily, by hand? This is it!
I used a standard 608 bearing, with ceramic balls. There are 10 large steel balls, 1 inch diameter.
The caps are remixed from www.thingiverse.com/thing:1802260 to fit.

Print Settings

Printer:

CR-10

                                            <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>0.2mm</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>100%</p></div></p>                                                        <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>Hatchbox PETG</p></div>

Post-Printing

Heat and Glue

            <div><p>Use heat gun or blow-dryer to heat when inserting steel balls.<br>I suggest gluing the bearing in place. Friction alone may not hold this bad boy!</p></div>

How I Designed This

FreeCAD

The Man's 1.6lb Fidget Spinner