Nothing looks more professional than stainless steel gearboxes. They’re so shiny and clean-looking. And that might actually matter if your working environment sees visiting guests or official inspectors. Other equipment that needs re-painting or a new powder coating can make the entire facility seem sub-standard.
But a pretty face isn’t enough, especially in certain industrial applications. You need gearboxes that can perform reliably as spec’d, for a long time, with minimal fuss, so there are serious functional reasons to choose stainless steel gearboxes.