That’s mainly because America mostly moves freight via trucks, and thus has very outdated rolling stock. It’s not unusual to see freight chassis that are 50 plus years old.

Russia on the other hand moves the majority of their freight via rail, and like most countries utilize tapered roller bearings for their trains. This allows them to carry a lot more weight, and the bearings last nearly 3x as long.

I’m not quite sure what would be harder, to import new bearings, build a production line from the ground up for bearings, or retrofit all their rolling stock with outdated technology.

Each choice is going to be expensive and extremely time consuming.