Even if your voltage truly is 220V 60Hz, it's fine. NEMA motor design calls for +-10% of nameplate voltage, but these smaller motors that have a "tri-voltage" rating (208-230/460) are actually designed around 220V +15 -10% so that they are OK with a 208V supply that can go down to 198V, through a 240V supply that can go to 253V. So at 220V you are right in the belly of the beast so to spek.
" We are all here on earth to help others; what on earth the others are here for I don't know." -- W. H. Auden