All of the OE wheels are bid and bought as a mated assembly and have been for many years… most have a sticker on the spoke of steel wheels listing the weight and PSI rating as the capacity that matches the OE tire, because the tire is the weaker of the two by law, they can’t use a rim of a lessor capacity…
My wheels have an air pressure rating of 70PSI… I had to demount the tire to find a sticker in the valley of the rim listing it, and the stickers were already beginning to fall off at less than one year… my last trailer had rims rated at 75PSI, with the same tire matching sticker on one of the spokes… but they had a weight and PSI rating stamped on the inner side of the rims bead flange (not in the valley) different (higher) from its OE tire… but stamped so lightly it was barely readable or visible even with the wheel removed from the trailer…
I have seen some rims with no markings and information on ratings is extremely hard to find from either the mfg. or regulators… apparently standardization is a foreign word to rim makers…
Never personally had a rim failure but hauled quite a few to the scrapyards… only had one blowout, on the rear of TV… had three sidewall ruptures (no blowouts) on the OE Duros…
Love my mass produced, entry level, built by Lazy American Workers, Hornet