Influence of Gear Errors on Rotational Vibration of Power Transmission Spur Gears : 1st Report, Pressure Angle Error and Normal Pitch Error

In this study, a power transmission spur gear is preferably a profile corrected spur gear. Supposing it is allowable that the given value deviates about ten-odd percent from the actual acceleration, it is synthesized how a pressure angle error and a normal pitch error influence the vibration of profile corrected spur gears, using the simulator developed by authors, whose outputs depict precisely the experimental behavious. The influence of these errors is revealed to depend on a rotational speed and a contact ratio as influence degree for each error. The influence degrees are shown on an influence chart of the performance of the rotational vibration by contour lines. A practical equation for the vibration of profile corrected gears having some errors is proposed.