Abstract
This paper discusses the development of a Nutating Speed Reducer (NSR), which is characterized by high reduction ratio, high tooth contact ratio, very high torque to weight/ volume ratio, quiet and smooth operation under load and very high efficiency. All of these advantages are due to the presence of conjugate face-gear pairs, which incorporate each other, which is called nutating/rotating gear mechanism. Details of the NSR, its kinematics, gear tooth load capacity, and mesh efficiency are explained. The general formulae for calculating the reduction ratio and main design parameters of the novel gear drive are developed. The smooth running of the NSR is examined without applying any load. The operability of the NSR under load is carried out in a virtual simulation environment to verify the transmission theory and the smoother transmission between pairs of teeth of the nutation speed reducer.
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