Abstract

This paper presents a study on the effect of supporting conditions on root stresses of thin-rimmed internal spur gears used for planetary gear unit. Stress analyses by the two-dimensional finite element method (FEM) for thin-rimmed internal spur gears fixed with bolts or supported with pins were carried out. The effects of the supporting condition, the position of the bolt (pin) and the number of bolts (pins) on the root stress, the stress at the hole for the bolt (pin) and the deformation of the rim were clarified.

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