Same Load Rating, Different Product: Why Two Trailer Jacks With the Same Specification Can Perform Very Differently
Two trailer jacks with identical load ratings can deliver very different operating performance and service life. This article explains how tube straightness, telescoping clearance, screw and nut geometry, gear quality, thrust bearings, lubrication, corrosion protection and manufacturing consistency influence the finished product—and how OEMs and sourcing teams should evaluate jack quality beyond its nominal capacity.