Quote:
Originally Posted by Angel And The Wolf
As I understand it, the wheel bearings are the limiting factor, with smaller tires spinning them faster. The manufacturer said these axles and wheel combinations are designed to hold up to highway speeds, though 13s wouldn't be a bad idea.
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Our local Purviss Bearing Company' counter sales guy told me that improper lubrication and setting the wheel bearing pre-load too tight were the defining issues for bearing failure.
He said that rpm wasn't really an issue as long as you respected the rated load of the axle.
Rolling resistance might be improved with a larger diameter wheel/tire for the same reasons you see passenger tires growing in diameter.
The larger tires can be had as radials as well.Although there's little available literature with respect to trailer tire R-R specifications.