Classroom on demand

Welcome to Classroom on demand, your source for educational materials related to the vertical transportation industry. This site represents the knowledge and expertise of the best engineers and mechanics in the elevator industry, and will help those new to the elevator industry learn about the basic workings of elevator systems, and also will serve as a reference for people with more experience.


The governor is a mechanical speed control mechanism. The governor monitors the speed of the car in the down direction by using one rope. If the car travels too fast in the down direction, the governor is tripped and a set of safeties are engaged to stop the car.

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