Tiedown, Inc. (“TIE DOWN”) warrants the Vortex hub/bearings to be free from defects in material and workmanship for six years or 100,000 miles, whichever comes first, from date of delivery to the original purchaser. First year parts and labor, remaining five years are for parts only (hub assembly). Six year/100,000 mile warranty applies to personal use trailers and not for rental or commercial use trailers. Warranty period for rental or commercial use trailers is 12 months, parts and labor. To maintain this limited warranty “LUCAS OIL” Marine Grease must be used when adding or replacing grease in the Vortex Hub. Should you need a replacement during the six year warranty period, return the hub with bearings, seal and cap, pre-paid to Tie Down Engineering. Upon proof of purchase, TDE will send you a replacement Vortex hub assembly at no charge.