![]() ![]() 42 Nm, and keep the desired output speed. However, he thought to achieve an output torque of 1,5 x 28 = approx. The servomotor of 500W had a maximum speed of 2.800 rpm, on paper an ideal combination. Recently we received the following question: A customer had used in their packaging machine a worm wheel gearbox, 63 frame size with a ratio of 28:1 because he needed 100 rpm output to drive a pusher. ![]() No-load running torque essential for gearbox in packaging machines In fact, some gearboxes have a ‘required’ drive torque to take into consideration which brings you even further out of spec! Therefore we give you, in this article, a concrete example and an explanation of the various ‘rotational’ torques which are common used in practice. Strange because if the nominal torque of the gearbox is equal or higher than the torque of the application you are good, or not? Unfortunately this does not always apply and people do not always choose the right gearbox. Customers who have designed a drive system on paper but in practice, the system does not work as planned. Back to the overview Importance of torque in a gearbox
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