Spiroid gears are used to transfer heavy loads with a significant reduction in input speed. Like most toothed gears, they are lubricated with oil whose physical properties change with temperature fluctuations, affecting the durability and reliability of the gear. Bearing this in mind, gear designers plan systems for measuring oil temperature during gear operation at the design stage. The authors of this paper are of the opinion that, in the case of spiroid gears, it may be insufficient to measure only oil temperature during gear operation. It seems that the working temperature of a pair of mating wheels has a decisive impact on the durability and reliability of the gear. The measurement of oil temperature in a tested gear should be treated as a supplementary measurement with the measurement of temperature on the toothed wheels as the basic measurement. Taking into consideration the above, an innovative test bench was designed and built, making it possible to observe how working parameters of the gear (torque and rotational speed) affect the temperature of the lubricating oil, but most of all, the working temperature of the pair of mating wheels. This paper presents, among others, the results of research on the impact of the rotational speed of the input shaft and load on the distribution of temperature on the toothed rim of the face gear.

Additive manufacturing technologies rely on extensive digital data processing, beginning with 3D-CAD model development and continuing through data preparation, process planning, manufacturing execution, and post-processing operations. As additive manufacturing systems become increasingly adopted...

This article presents a strength analysis of drone structural components made of polymeric materials (PLA, PETG, ASA). The geometry of three-dimensional research models was developed and constructed using artificial intelligence-based software. The geometric data was processed into a form suitable for production using a 3D printer based on MEX (Material Extrusion) polymer layer extrusion technology. Strength tests of the drone's arms, which serve as motor mounts, were performed using a static bending tester equipped with a special fixture.