Patent ID: 9145949
Filing Date: 2015-09-29
Classification: F16C,F16H,Y10T

Abstract:
1. A reducer of an electric power steering apparatus, comprising: a worm shaft bearing coupled to a worm shaft, which is tooth-engaged with a worm wheel, at an end of the worm shaft opposite to a motor shaft coupling portion; a bearing bush fitted on an outer circumference surface of the worm shaft bearing and formed with a through-hole at a side opposite to a worm wheel side; a damping member fitted on an outer circumference surface of the bearing bush, the damping member having an inner circumference surface on which elongated recesses are formed in an axial direction on opposite sides of the inner circumference surface such that an inner diameter may be contracted toward the worm wheel side, and an outer circumference surface which is supported on an inner surface of a gear housing; a cover member coupled to an end of the gear housing opposite to the motor shaft coupling portion; and a compression adjustment member coupled to the gear housing, and configured to compress the outer circumference surface of the worm shaft bearing to elastically support the worm shaft bearing toward the worm wheel so as to compensate for a clearance between the worm shaft and the worm wheel.