Kingpin Wear Limits--Commercial Trailers and Semitrailers(STABILIZED Sep 2011)
This SAE Recommended Practice applies to upper coupler kingpins for commercial trailers and semitrailers conforming to the dimensional requirements of SAE J700 when new and originally installed. The dimensions of SAE J700 are the frame of reference for this document.
Rationale: The Truck and Bus Coupling & Interchangeability Committee which owned this report has been inactivated and the technical expertise for the subject report within the Truck-Bus Council is not available at this time. This standard has been transferred to the Total Vehicle Steering Committee to stabilize the standard.