HUBS, WHEEL BEARINGS,
AXLES AND LUBRICATION
Trailers equipped with Dexter Marine Products or Georgia actu-
ators are also equipped with Vortex hubs and spindles. The hubs
are pre-greased and assembled at the factory. As a result, they
should not require any additional adjustments. The Vortex hub uses
tapered roller bearings adjusted to a maximum .006 end play. The
twelve-sided castle nut easily maintains this maximum .006 end
play. The configuration requires a minimal amount of end play that is
factored in at the time of assembly.
The rear seal rides on a stainless steel wear sleeve. This provides
longer life for the seal as the surface does not corrode. Corroded
or rusted seal surfaces act like sandpaper on the seal, causing
premature seal failure. Every reasonable attempt has been made to
prevent this.
Vortex lubrication makes changing or adding grease easy because
the hub does not need to be removed. Most axles have a threaded
grease cap, and it is easy to remove and replace.
Vortex requires Lucas Oil Marine grease, a premium lithium-based
complex grease that is fortified with rust and oxidation inhibitors,
and high-pressure additives that provide a high degree of moisture
resistance and wash-out properties.
Use only Lucas Oil Marine Grease when adding or replacing grease
in the Vortex hub. Using any other grease will void the warranty.
Adding Grease Or Removing Hubs
The Vortex hub/spindle is designed to be a no-maintenance hub for
six (6) years. Remove the Vortex grease cap, unscrewing threaded
caps in a counterclockwise rotation. On the press-in style caps, sim-
ply remove the rubber plug in the center to grease the bearings, or
knock gently with a hammer, preferably a rubber mallet, if removing
the entire hub.
Use a standard grease gun loaded with Lucas Oil Marine Grease to
pump the grease into the zerk fitting located on the end of the spindle.
• Pump the grease into the zerk fitting while slowly rotating the
wheel. Grease will flow out of the hub around the front bearing.
• When the grease appears to be the new clean grease, remove the
grease gun.
2021MCOwnerManualFINAL.indd 409 8/26/20 1:55 PM
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