A moving apparatus includes a cylindrical cam barrel provided with a cam
groove; a moving member configured to be rotated relative to the cam
barrel and moved in a perpendicular direction that is an axis direction
of the cam barrel; and a bearing for supporting a support shaft fixed on
the moving member in the cam groove, wherein when viewed from the axis
direction of the support shaft, a contact position F between the bearing
and the cam groove is located closer to the side of the rotation center
axis of the moving member than the axis line of the support shaft.