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.

Machine Module

A traction machine is used on all traction elevator equipment types. A standard traction machine consists of a motor, drive sheave, brake and machine bed plate. The traction machine motor turns the drive sheave shaft to turn the drive sheave. As the sheave turns the hoist ropes pass over the drive sheave and pull the car through the hoistway. This diagram shows a traction machine located in an overhead machine room.

Tags:  traction machine Sheave motor brake


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