Why are container trailer wheels and tires different?

They are a pain to deal with in the summer and dont like speeds over 65mph imo. Even 60mph is a stretch on longer runs during summer. Most chassis will have tubeless with inflation if its leased by one of the better pools.

 

I know it's not tires, but...
Passed a chassis today on the way out of the factory. Had rollers on the landing gear. Kinda surprised to see that in this day and age.

 

Most of those are Dayton wheels. Those are probably old units. Guys use to lay a hammer down, close to the tire and spin it, to see which lug nut needed to be tightened more or to pull the wheel in. A lot of wobbly wheels and noisy bias tires back then. Although, some could get them very straight.

When the radials came out, they did coast down tests and radial tired rigs were rolling about 30% farther. A bias tire balls up in front of the tire and the rig is climbing a hill on every tire. Radials roll out on the side wall and offer much less drag and heat. Big reasons for the great leap in noise reduction, fuel and tire mileage today.

 

Some tire shops won't touch them,

 

a lot of our older DCLI [Maersk's chassis company] that were former Sealand Chassis still have rollers

 

we have them from when they first stopped supplying them and started DCLI...thinning them out as they are the most costly to maintain...not to mention the will pop tires...1/4 th of the chassis fleet still on bias rubber is responsible for over 95% of our tire bill which has dropped each year as we added more and more units with radials.

As far as the rollers, until they rust out, stand up to being drug out of line to reach the crank handle. Probably the ONLY reason the are still here protecting the original landing gear...our repair vendor won't paint replacement legs on these as he does not have any Sealand baby carriage blue paint.

 

Jesus, at 30 apparently I’m older then I realize because I’ve done plenty of open Dayton’s tube and tubeless, although I do believe the 2 piece rims were outlawed some time ago, my uncle has told me stories about having a few blow apart on him in the early/mid 80s

 

Two piece. You mean the rim with a lock ring set up? Container chassis still use a lot of them ( with a tube type tire). My dad told me in the 50"s his old chevy six wheeler that he hauled canned milk with had some kind of set up with the rim being split in the middle. Mayby a sort of finger lock that you turn before airing it up (not sure). They were a death trap, with age on them they would blow apart while driving. Those type were outlawed many years ago, mayby in the 1960's.?

 

I’ve seen a couple here and there, usually rolling along the East Coast, like in Jersey or Georgia.