introduction: Mechanical gears face contact issues; magnetic gears offer a solution, but research on axially coupled permanent magnet planetary gears, especially regarding key parameter matching, is insufficient. materials and methods: A 2K-H type mechanism was designed with NdFeB magnets, followed by parametric design and 3D electromagnetic simulations (FEMM, Ansoft Maxwell). results: Magnetic force and torque are proportional to tooth dimensions but inversely proportional to the air gap; optimal transmission performance requires a 4:4:2:1 ratio of tooth height, width, thickness, and working air gap. discussion: To design and analyze a novel axially coupled permanent magnet planetary gear, optimizing its transmission performance by evaluating the impact of key structural parameters. conclusion: The proposed design achieves non-contact, low-noise transmission and offers a validated parametric method and optimal ratio for specialized applications.
Chen et al. (Sun,) studied this question.