| 摘要 |
An electric power steering apparatus includes a worm (3) interlockedly connected to an output shaft (1a) of an electric motor (1), a first and a second bearing (6, 8) each supporting the respective side of the worm (3) in a housing (7), and a gear wheel (4) meshed with the worm (3). The housing (7) includes a fitting bore (71) in which the first bearing (6) supporting a side of the worm (3) closer to the electric motor (1) is to be fitted, and an annular retaining portion (12a) located at a position corresponding to the second bearing (8) and eccentrically oriented with respect to the center (axial center) of the fitting bore (71) in a direction that shortens a distance L between the center of rotation of the worm (3) and that of the gear wheel (4), and the annular retaining portion (12a) retains a coil spring (13) around an outer circumference of the second bearing (8). |
