Definitions for "Spring bar"
Keywords:  hitch, tow, axle, trailer, bar
Component parts of a weight-distributing hitch system. The spring bars are installed and tensioned in such a manner as to distribute a portion of the trailer's hitch weight to the front axle of the tow vehicle and to the axles of the trailer.
A spring bar is a spring-loaded bar that attaches a strap to a watch's case.
Key component of a weight-distributing hitch system. Spring bars work to distribute trailer tongue loads to the tow vehicle forward axle.
Keywords:  width, sitting, door, extends, center
this extends the width of the door, sitting above the door and going through the center of the Spring(s).