Importance

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Abstract

A motor unit includes a first rotating shaft driven by a motor and including a first gear, a pair of first bearings, each of which is located on each side of the first gear, and that supports the first rotating shaft to the casing such that the first rotating shaft is rotatable, a second rotating shaft being parallel to the first rotating shaft and including a second gear meshing with the first gear, and a pair of second bearings, each of which is located on each side of the second gear, and that supports the second rotating shaft to the casing such that the second rotating shaft is rotatable. The second bearings are located between the first bearings in an axial direction parallel to the first rotating shaft and the second rotating shaft, and each of the second bearings includes an outer ring, an inner ring, and a rolling element.

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First Claim