If you run your variable frequency drives at 60 Hz and below, you are not alone. Nearly all the VFDs in North America operate below this nominal frequency threshold. Yet a growing number of ...

You've added the lift and big tires, but you're being outrun on the freeway by aged Yugos, and your 4WD sucks gas faster than an earthmover. Part of your woes may simply be due to the gearing in your ...