Batman Spinner

This is a customization of www.thingiverse.com/thing:1849269. The original one was off balance and the bearing holes were too small. So I had to recreate it with Solidworks and fix it. This one is perfectly balanced.

I have included an adapter to use a 17mm x 6mm x 6mm bearing, I found some ceramic ball hybrid bearings that make this thing spinner for a long time. Here is a link.

https://www.amazon.com/gp/product/B06Y2HH6Z7/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1

So you can use the 608 22mm x 8mm by 8mm or the 17mm in the center, then just use the 608 on the ends for weight.

I have also included Grip caps and flat caps for each size bearing. Flat caps for use in the outer 2 bearings and Grip caps in the center

Installing the bearings: I use a small Arbor Press, but a vise will also work. Also I use a socket that is exactly the size of of the outer ring of the bearing. Just remember to press the bearings and adapter in slowly so as not to crack the plastic.