Overheating can indeed cause dimensional deformation of heavy-duty gear parts. During the operation of heavy-duty gear parts, if the temperature is too high, dimensional changes may occur due to the thermal expansion characteristics of their materials. This change not only affects the meshing accuracy of gears, but may also have a negative impact on the overall performance of the transmission system.
Specifically, when heavy-duty gear parts are exposed to high temperatures for a long time, the atoms or molecules inside their materials will move away from each other due to intensified thermal motion, resulting in material volume expansion. This expansion phenomenon is particularly evident on the tooth surface, tooth root, and other parts of the gear, as these parts bear significant stress and wear during the transmission process.
Dimensional deformation can affect the meshing clearance, contact area, and transmission efficiency of gears, and in severe cases, may even cause to gear jamming or fracture. In addition, high temperatures can accelerate the oxidation, corrosion, and wear processes of gear materials, further shortening the service life of gears.