Bearing bushings have less friction than standard bushings, and the larger size bearing bushings you go with, the less friction it will have over the smaller bearing bushings. 8mm gearboxes are a ROF ######'s dream.....10mm even more so, but if only they were produced.
14mm CCW is generally found on airsoft barrels from Tokyo Marui, King Arms, Classic Army, etc., but 14mm CW is generally only found with G&P barrels. So to answer your question, no, but CCW is much more common than CW.
The overall apperance of the gun has been trimmed up a bit since the last picture. Unfortuneately I had a bit of a mishap with the OPS supressor last weekend, so we are back to a Plain Jane carbine...