the load applied the length of, or parallel to, and having a common axis with, the primary axis

The component of load acting along the length of a pipe exerted by the piping system during its expansion, contraction, or movement.

The load applied to the length of, or parallel to, the primary axis with which it shares a common axis.

Force directly coincident with the primary axis of a structural member such as a beam.

A force acting parallel to the axis of rotation of the shaft.

Force acting in the direction of the shaft.

A load applied along or parallel to and concentric with the primary axis.

The load exerted on a wall or other structural element and acting parallel to the element's axis. Axial loads typically act in a vertical direction, but may be otherwise depending on the type and orientation of the element.