WORM WHEEL, REDUCER, AND MOTOR WITH THE REDUCER

摘要

A worm wheel (50) is structured integrally with an output shaft (52). The worm wheel (50) includes the output shaft (52), a circular flange (50a) with the output shaft (52) placed as the center, and teeth (50b) formed on the periphery of the flange (50a) and in mesh with a worm. The flange (50a) is provided with a first recessed flange portion (50c) opposite to the side of the output shaft (52), and the bottom (54) of the first recessed flange portion (50c) has a ring-shaped first planar portion (54a).