The aim of this study is to investigate the helix angle effect on the helical gear\nload carrying capacity, including the bending and contact load carrying capacity.\nDuring the simulation, the transverse contact ratio is calculated with\nrespect to the constant pressure angle. By changing the helix angle, both the\noverlap contact ratio and total contact ratio are calculated and simulated. The\nbending stress and contact stress of a helical gear are calculated and simulated\nwith respect to the helix angle. Solid (CAD) modelling of a pinion gear was\nobtained using SOLIDWORKS software. The analytically obtained results and\nfinite elements method results are compared. It is observed that increasing\nthe helix angle causes an increase of the contact ratio of the helical gear. Furthermore,\nincreasing the contact ratio reduces the bending stress and contact\nstress of the helical gear. However, with a constant transverse contact ratio, it\nis possible to improve the total contact ratio depending on the helix angle. It\nis concluded that a higher helix angle increases the helical gear bending and\ncontact load carrying capacity.
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