Abstract
Accurate gears are needed in order to obtain the high load carring capacity of gears. This study aims at manufacturing highly accurate gears by hobbing. In this report, a method for the calculation of tooth profile errors caused by geometrical hob errors such as profile errors of the hob tooth and the eccentricity of the hob is proposed. From the comparison of the calculated tooth profile errors with the measured ones in hobbing tests, it is found that the tooth profile errors generated by the geometrical errors and the eccentricity of the hob can be distinguished from those by the dynamic errors of the hobbing process, i.e. vibrations, built-up edges and so on. It is proved that the accuracy of this calculation method is sufficient to study the accuracy of hobbed gears.
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