speed ratio, velocity ratio, speed increasing ratio
vedava ja veetava ratta (või võlli) pöörlemiskiiruste suhe i = ω1 / ω2 = n1 / n2 , mis aeglustuvates ülekannetes võrdub ülekandearvuga, fundamentaal parameeter of a mechanical drive that is defined as the ratio of its driving n1 and driven n2 shaft speeds of rotation or angular speeds i = n1 / n2 = ω1 / ω2
