The parts of an elevator include:

1. Elevator motor: The elevator motor is needed to accelerate the car and compensate for the varying load.
   • Car empty: The motor is needed to lower the car.
   • Car half full: When the weights are balanced, the work done by the motor is minimized.
   • Car full: The motor is needed to raise the car.
2. Governor: This device regulates the speed of the car.
3. Motor
4. Sheave: A pulley carries the cables attached to the car and the counterweight.
5. Steel cables
6. Counterweight: The counterweight is made of cast iron, or concrete in a steel frame.
7. Outer shaft doors
8. Elevator car: As the motor turns the sheave, the car moves up or down the shaft on guide rails.
9. Safety brakes: The brakes slow the car if it moves too fast.
10. Guide rails
11. Shock absorber: This piston stops the car if it falls.