What is the use of a gearbox and why use it over an electric motor with a speed drive?

Question

I don’t quite understand the use of a gearbox. What is the purpose of it?

Say for example some machine use a gearbox for some reason is it possible to replace it with a motor and a speed contorller?

Thank You.

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In: 0

Answer 1

An engine makes tiny explosions – so it has to go fast…but not too fast or it explodes itself. It’s easier for us to control the output (via gears) to get our desired power or speed.

An electric motor runs how we want it to, so it’s easier for us to control the input (via voltage/frequency control).