A suspension apparatus for a vehicle including a drive unit configured to provide driving power to a wheel, a first knuckle coupled to the drive unit and configured to transmit a steering force to the wheel, a second knuckle disposed to face the first knuckle and configured to support the first knuckle so that the first knuckle is rotatable, a suspension arm extending from a vehicle body and configured to absorb impact applied to the wheel, a bushing unit provided between the second knuckle and the suspension arm and configured to support the second knuckle so that the second knuckle is rotatable relative to the suspension arm and a rotation restriction unit provided on the bushing unit and configured to selectively restrict a rotation direction of the second knuckle.

An embodiment corner module includes a steering unit configured to receive torque from a steering motor, a damper connected to the steering unit and connectable to a wheel, and a vibration insulation structure disposed at a portion where the steering unit and the damper are connected to each other, wherein the vibration insulation structure includes a lower bush and an upper bush stacked in a vertical direction.

The bushing may include a first end having a first coupling interface configured to operably couple to a first coupling point or a second coupling point, a second end having a second coupling interface configured to operably couple to the second coupling point or the first coupling point, an inner metal portion, an outer metal portion, and an elastic portion. A hardpoint may be defined between the first end and the second end along the inner metal portion at a first hardpoint location and a second hardpoint location. The second hardpoint location may be shifted along a common axis relative to the first hardpoint location.