SAF-Holland has introduced its new removable and replaceable Holland 2-in. AAR Kingpin system for hot dip galvanized upper couplers.Designed to meet AAR specifications, the system features a specially machined kingpin housing and kingpin, the company said. The kingpin housing is welded into the upper coupler of the trailer prior to the hot dip galvanization process allowing for complete and uncompromised upper coupler corrosion protection. After galvanization, the replaceable kingpin is secured into the housing with a special nut and collet fastener, allowing the kingpin to remain removable and replaceable over the life of the trailer, according to SAF-Holland. Because the AAR kingpin is installed in the upper coupler following the hot dip galvanizing process, it is not exposed to harsh chemicals and temperatures during the hot dip galvanized process, the company added.“This new AAR Kingpin System answers the OEM’s challenges of hot dip galvanizing upper coupler assemblies by allowing the kingpin to be installed after the galvanizing process. This design allows for the easy removal and replacement of the kingpin for dealers, fleets and OEMs,” said Jeffrey Talaga, Vice president of sales and strategic development, Americas.The system is designed to be compatible with ¼-inch, 5/16-inch, and 3/8-inch bolster plates, utilizing the same housing and different length kingpins to accommodate the thickness variations.
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