EZ-BB Bearing

I apologize there was an issue with the original file. I have corrected and uploaded.

This is not a high precision bearing. I have had many projects that needed cheap custom bearings. I know that there are other printable bearings on this site, This is my version and I wanted to share with everyone.

For this, you will need: Print the STL file, sand paper (I used 60 Grit) and 20-22 (.177Cal., 4.5mm) BBs.

After printing the file sand the inside of the larger ring. The track the BBs sit in does not necessarily need to be sanded but check it for imperfections. The BBs need to fit through the hole on the side, clean and widen as needed. All you need to do is be able to press them through it. Next, use a small amount of grease inside the large ring. Put the two ring together and start popping in the BBS. Spin the bearing a little after loading each BB you may need to use a small screwdriver or nail to push them out of the way. When they are all in, or as many as you can fit), pop in the plug. You may need to use a little force to get the plug in all the way or a drop of glue if it's loose. The bearing will most likely be stiff and noisy at first but it will loosen up and get smoother the more it is used.

I included picture instructions and a (kind of) drawing of the parts to help others use this information. I have been able to modify this thing to make slew and arm bearings.