Question

A 1.5 kW motor is running at 1440 rev/min. It is to be connected to a stirrer running at 36 rev/min. The gearing arrangement suitable for this application is

• A. differential gear
• B. helical gear
• C. spur gear
• D. worm gear

Answer 1

The correct option is D worm gear

Velocity reduction $=\frac{36}{1440}=\frac{1}{40}$
For this kind of reduction, worm gear arrangement is most suitable.