For the need of international market, we have already made our tubular motors with tube diameter 59mm into 140Nm! By doing so, we could replace our original TB214M(92mm) motors with the current TB114M(59mm) motors. Our new product TB114M tubular motors have passed the experiment of 80,000 revolutions. And its cost is cut substantially compared to the original TB214M(92mm) tubular motors. We sincerely wish to cooperate with all the new and old customers. Torque(Nm): 140! Length(mm): 677 Frequency(Hz): 50/60 Motor Revolution(rpm): 2800/3300 Time Rating (min): 4 Tube Diameter(mm): 59