... efficiency,long life high quality with competitive cost Brushless motor Voltages:12, 24, 36,48V dc Power:5W-- ... 1500WSpeed:1000--20000rpmController:as per customer's requestshaft diameter: Motor diameter: 28-160mm or customizMotor length: Contact us ... , contact us now. Our purpose: "faith-based science and technology, honesty and trustworthiness, innovation, perfect quality, Customer satisfaction" . ...