At 7rpm it's a bit fast for my satellite dish project. It can be slowed down with a PWM controller. I use about 5762 for the sales calculation. I'd love to find those n lower RPMs, but most motors of this type on the market don't have a tailshaft and/or encoder, so you'll have to settle for what you can find, or mess around with some sort of external low-speed one encoders. from the side of the wave, not so great.