| 摘要 |
PURPOSE: A power transmission device for a motor driven power steering system is provided to improve marketability of a vehicle by preventing an unstable steering assisting force from being generated. CONSTITUTION: A power transmission device for a motor driven power steering system comprises a steering column shaft bevel gear(15a) and a motor bevel gear(15b). The steering column shaft bevel gear is rotatably coupled to a steering column shaft(11). The motor bevel gear is rotatably coupled to the steering column shaft. The steering column shaft bevel gear has a tooth shape on the center inclined surface. The motor bevel gear has multiple tooth shapes in the inclined surface.
|
