A support post includes an inner post that supports rotation of an outer post. The inner post includes a journal assembly that supports and facilitates rotation about a central axis. The journal assembly that supports the outer post on the inner post includes a single ball bearing disposed along the axis of rotation. The inner post is fixed and supports a central post on which the ball bearing is supported. The outer post includes a sleeve that fits over the ball bearing and the central post. Support of the outer post along the central axis provides for improved mounting and gate support. An actuator can be utilized to automatically or remotely open the gate. The actuator is disposed within the inner post that drives rotation of the outer post. The outer post remains supported by the journal assembly and is rotated by the actuator with the inner post.