Baldor Electric Co. has combined technologies from the laminated finned frame RPM AC motor with a permanent magnet salient pole rotor to create an energy-efficient, power-dense product that can replace the right-angle gearbox and jack shaft in many conventional cooling towers. The fan couples directly to the motor shaft and is controlled by the VS1 cooling tower drive. The totally enclosed-air over RPM AC cooling tower motor:

The VS1 cooling tower drive: