It happens regularly, customers who have thought out the transmission completely on paper. But in practice the drive does not work as planned. Strange because if the nominal torque of the reducer is equal to or higher than the torque of the application then you are fine, right? Unfortunately this is not always the case and people do not always choose the right reducer. In fact, some reducers have a 'mandatory' torque to calculate with and then you are even further from home! This article therefore provides a concrete example and an explanation of various rotational torques that are often used in practice..
Recently we received the following question: A customer used a size 63 worm gear reduction with a ratio of 28 in his packaging machine, because he needed 100 rpm output to drive a pusher. The 500W servo motor had an optimal speed of 2800 rpm, so on paper an ideal combination. However, he thought he would have 1.5 x 28 = approx. 42 Nm left on the output side, but he did have the desired output speed, but no more torque! Even after he had taken a size larger motor, he barely had enough left to drive the pusher.
Read the full article about torques and gearboxes here on our website…