The tracks are wrapped around one or more drive wheels, often cogged, which directly pull on the track. On the bottom of the vehicle are the road wheels, which ride on top of the track where it ...

The drag marks and footprints were discovered in present-day New Mexico. Researchers say they're some of the earliest known ...

“We concentrate on helping customers sort out which unit -- tracks or wheels -- is their best option,” he says. “You have to get to know their businesses and what they’ll use the machine for.

“And just because the excavators have wheels, doesn’t mean they have to ... In regards to a majority of tracks in construction equipment undercarriages, Andrews believes that North American ...

Scientists discovered 22,000-year-old tracks in New Mexico, possibly the oldest evidence of human transportation using a travois.