This is a BRAND NEW blower motor for a GOODMAN/JANITROL Air Handler/Furnace. This Motor has the 3 mounting "ears" riveted onto it. It's 1/3 HP 208-230 volts 1075 RPM. The Goodman/Janitrol part number is B13400312S/ 11091205.
An electric motor converts electrical energy into mechanical energy. In an HVAC system, motors typically turn the air conditioning fan blade and the furnace blower motor. Newer high efficient motors, such as X13 and ECM motors, have "end caps" that control the motor speeds. These can be removed and replaced separately.