Bearing block for table (8mm shaft, 623zz bearings at 120 degrees)

UPDATE 03/02/2017:
INSTEAD OF THIS DESIGN I WOULD RECOMMEND TO USE THE BETTER ONE:
http://www.thingiverse.com/thing:1445162
ADVANTAGES ARE: the distance between the shaft and the bed is the same as when using original LM8UU bearings. So you will not loose some Z-space and table with trigger the Y-endstop without problems.

At the link below I made the bearing blocks for X-axis. You can see the details there.
http://www.thingiverse.com/thing:1424346
Now here is a similar block for Y-axi