The parts of a garbage disposal include the following:
Hopper chamber: The hopper chamber is the cylinder that holds the disposal. Food collects in the upper part of the hopper chamber and then moves to the lower chamber where it's shredded.
Shredder wing: The shredder wing is the blade ring that sits between the upper and lower chambers. The shredder rotates chopping and grinding the food waste.
Motor and impellers: The motor is what powers the garbage disposal. Once you turn the appliance on, the motor supplies the unit with the power to grind waste.
Waste line: The waste line fits tightly with the lower hopper and directs food waste to the drain pipe.