Abstract
A gear coupling is one of the most common types of couplings in use today. Its popularity is due to its ability to accommodate axial, radial and angular misalignments which result in uneven distribution and sharing of transmitted loads between meshing teeth and may enhance deterioration in the coupling due to fatigue if not accounted for. In this study, load sharing among coupling teeth in the presence of angular misalignment is investigated. A procedure is introduced in which the coupling teeth are modelled as linear springs whose stiffnesses are equal and determinable from the coupling geometry and material. It was found out that the external male teeth are separated from the corresponding female internal teeth by distances (clearances) determined from the backlash and the angle of misalignment. Therefore, when the coupling is loaded, the teeth with small clearances come into contact before the ones with larger clearances. This results in an uneven distribution of loads among contacting teeth where some...
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