Description: Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min, or with the notation min ) is the number of turns in one minute. It is a unit of rotational speed or the frequency of rotation around a fixed axis.; Name: rotation frequency
Description: Number of revolutions of the pump in a given time required to meet the rated conditions ; Name: Rated speed
Description: translation i of a pair of gears or a multiple gear pair is the ratio of the angle speed wa (or the speed na) of the first driving wheel to that of the last driven wheel wb (or nb); Name: Transmission ratio of the transmission