We deal with center shaft dc motors of various power values. It is an electrical motor which is used to produce high torque. Maximum gear motors cover a revolution of 1200 to 3600 revolutions per minute.
I like this beginning workout for the length of time and for varying lengths of the intervals. I wish it were based on RPM (revolutions per minute) instead of RPE (rate of perceived exertion.) I've only tried the beginner level so far.