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  1. popeye427

    A query on wheel rim

    Hi Bljnv, Rim thickness is dependent on the wheel loads, and there isn't any difference between tubeless and tube tire loading. You haven't told us if you're using "J" configuration car/lt. truck rims or "K" medium truck rims, but the retention of the tire beads depends on inflation supplied...
  2. popeye427

    AT tire profiles vs AS tire profiles

    Thanks Capriracer, You are correct in your assumption that the critical point was the definition of maximum envelopes. I had already adjusted the projected dimensions to simply reflect the deeper tread, but its always useful to see an assumption confirmed. As for suppliers, well there really...
  3. popeye427

    AT tire profiles vs AS tire profiles

    I'm working on a design for an SUV chassis that will be sold in markets that include extreme snow and off road. The tire assumptions that came with the proposed vehicle only show metric AS tires. I'm insisting that we need to have AT tires in the mix for this vehicle, and that requires accurate...
  4. popeye427

    Popeye427 - your help please

    Capriracer, I definitely agree that many concerns in trailer wheels and tires arise from a proliferation of new offshore suppliers rushing into the US market with poorly designed and often untested product. New brands are readily apparent in tires, but unfortunately new brands of trailer wheels...
  5. popeye427

    Popeye427 - your help please

    There are significant stresses on the wheel rim from tire inflation and loading and significant differences in stresses with bias or radial tires. Other old timers may remember major rim split issues with 16.5 truck wheels running the early radials in the '70s. That said, its unlikely that a...
  6. popeye427

    history of tapered lug nuts/bolts/screws

    A lot of the old practice has to be set aside as times really have hanged for wheels and tires. I started out as a tire engr in the 70s, working in R&D on the original high performance radial 50 and 60 series tires. In skidpad testing we could easily pull the lug nuts through a standard wheel...
  7. popeye427

    history of tapered lug nuts/bolts/screws

    Tmoose, Have just joined this forum and this is hopefully still be a useful response to your earlier post. I've designed a lot of wheels with conical and flat nut seats over the last 35+ years and I was part of the SAE subcommittee that created SAE standards 2315 and 2316. In answer to your...

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