WORM WHEEL FOR ELECTRIC POWER STEERING SYSTEM AND METHOD FOR MANUFACTURING THE SAME

摘要

The present invention relates to a worm wheel of an electric power steering device and a method for manufacturing the same. The worm wheel of an electric power steering device comprises: a fastening hub unit having a through hole to allow a steering column of a vehicle to axially penetrate; and a worm wheel gear unit which is coupled to the fastening hub unit to be integrated and has a gear groove that is formed at the external edge thereof to be engaged with a worm gear unit of a worm shaft to add rotation power to the steering column, wherein the worm wheel gear unit is made of resin materials and is injection-molded to be integrated with the fastening hub unit, thereby making the manufacturing processes relatively simple and lightening the weight.