Patent ID: 7857334

Claim:
A suspension arm supporting structure supported by a frame-side supporting portion of a vehicle body frame, comprising: a suspension arm including first and second arm-side supporting portions, an outer front arm portion provided on a front portion of an outer side of the vehicle body, an outer rear arm portion provided on a rear portion on the outer side of the vehicle body, and an arm portion which are integrally formed, the first arm-side supporting portion being supported by the frame-side supporting portion in a radial direction and in an axial direction, the second arm-side supporting portion being supported by the frame-side supporting portion only in the radial direction, the outer front arm portion and the outer rear arm portion each including a separate hole configured to receive a bolt therein for supporting a knuckle connected to a wheel, wherein the first arm-side supporting portion is supported by a needle bearing in the radial direction and is supported by a bush in the axial direction, wherein the first arm-side supporting portion includes a through hole and a bush receiving member fitted within a first end of the through hole, and wherein the bush receiving member is configured to receive the bush in the axial direction, the bush having a first portion that is fitted within a hole of the bush receiving member, and the bush having a second portion that extends axially beyond the bush receiving member.