I work on a tracking solar concentrator that requires a motor to operate on a rooftop exposed to the elements for 15 years. I suspect that the only way for this to be possible is to seal the motor within an enclosure that mostly protects it from the environment.
Our current enclosure design...
I work on a tracking solar concentrator system that currently uses a small (NEMA 17) stepper motor for our actuation. This product is a rooftop system that will be exposed to the environment. We are hoping to achieve a 15-year maintenance-free lifetime for our product. Our duty cycle is...