This is a used 5 HP 1740 RPM electric motor, 184T frame, comes with a two groove pulley and attached adjustable rigid base (which alone is worth what I am asking for the whole assembly). This motor came from a working compressor and is guaranteed to work, I ran it personally. Motor is 3 phase. Made by Lincoln Electric in USA. If you want to use it to make a phase converter, I can show you how to do it (but you need to buy it).