16014 printed bearing-8mm steel balls

As I had a few 8mm steel balls over from another project, I designed this 16014 ball bearing to suit the open source ciclop scanner bed. Uses 12 balls and is easy to assemble as the ball cage just clips into place.
http://www.thingiverse.com/thing:740357
April 8th >> Updated The 12 ball runs fine but added an 18 ball cage if you want/need the bearing to run smoother.
here's a link to where I source the steel balls >> http://www.banggood.com/50pcs-Wheel-Bearing-Balls-from-4568910MM-p-967092