Since my robot is running on a Raspberry Pi, which is now supported by ARC, I decided to evolve my current project K[8] into a new one called ZOE... First steps will creating a new servo setup which supports Dynamixel Servos, and a new Conceptual design!!
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Ted, Thanks for the tip, Fastenal they are good, I recall got something from them a few years ago, but looking to the above picture I don't like their websiteI use Bearings Inc and McMaster Carr often. The later has downloadable cad files for nearly every part in their catalog...which is massive. I sometimes source parts from them and simply load in the part in my 3d design software as I wait for the part to arrive. Mind you both places will sell to the individuals, but they are industrial and some items have industrial prices.
Bearings inc
McMaster-Carr
Will, Thanks both are good tips... I'm checking both:

the price is going up....maybe try The Robot Market Place.
Will, Thanks it seems a nice market place.
I found an US supplier:

same model number: 6809-2RS , same dimensions, off-course is not approved for space explorationSorry to spam the thread with Ball Bearings, I hope can be useful for others.
Still open for more suggestions...
OMG we are officially certified for space exploration now!!
Oh, happy dancing hugaroos...its just being food safe!! But anyways!! We will go where no man has ever gone before!!
Nomad, DJ got a exosphere for you to do
EzAng