Detailed Product Description stepping motor manily used for air-condition, ... high quality and competitive price. Our stepping motor series include the PM stepping motors 42BY, 35BY, 25BY, ... and PM geared stepping motors 50BYJ, 35BYJ, 28BYJ, 24BYJ, ect ... non-standard specification.SpecificationModel Rated Voltage (DCV)Resistance Ω/Phase (at 25)Max.Freeload Pull-in Frequency ( ...