Looks like them but best to find a casting number on one of them and provide that. Someone will be able to verify that.
In any case, you have a bunch of goodies there.
Measure them up......D2 roller dimensions
Ovl width 5.94"
Ovl track width 4.75"
OD flange 8.00"
OD track roller 7.00"
Those are definitely D2 bottom rollers.