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.

Sheave – Secondary

A pulley on a gearless machine which serves two purposes - 1. To allow each cable a second pass over the drive sheave. 2. To deflect the cable for a straight drop to the counterweight.

Tags:  traction double wrap machine gearless

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