2 flanged bearing Y idler for mega prusa

Summary Just use 2x flanged bearings of this type F608ZZ for this one just in case you want a non skipping Y belt on mega prusa project. Much better than the original one bearing design. With this one I have reached 60 mm/sec with no problems: no wearing on sides of the belt, no skipping belt. My intention is to make a lead screw design on Y, so is just a temporary solution