Abstract: A device for constraining rotational motion of an actuator such as a seat actuator during a dynamic event. The device includes a first part attachable to a fixed frame member and carrying a first clip, and a second part attachable to an actuator and carrying a second clip. Prior to and following a dynamic event sufficient to cause actuator rotational motion the first clip and the second clip are disengaged. During the dynamic event the second clip is configured to engage the first clip to momentarily stop rotational motion of the actuator such that load on the actuator passes through the actuator shaft into the frame. In embodiments, the device is configured to minimize actuator deformation during a dynamic event while allowing a full range of standard motion during normal use of the actuator.

Abstract: A trunnion assembly for an oscillating axle, pivotable about an axis, is provided. The trunnion assembly includes a trunnion that is mounted to the axle housing and is disposed about the pivot axis of the axle. The trunnion has first and second axial ends and includes a recess disposed between the two ends. The recess is configured to receive a seal used to retain lubricants. The location of the recess limits exposure of the seal to foreign objects and elements thereby prolonging the life of the seal and related components of the trunnion assembly.