This article describes a unique method of measuring the efficiency of gearboxes using foil strain gauges. which allows maintaining the current configuration of the gearbox within the overall assembly of the machine and its functional condition. The presented method is applicable to gearboxes located in the original equipment assembly without the need to use a test rig. Using foil stra... https://www.chiggate.com/3m-speedglas-9002nc-welding-helmet-fashion/