I am planning to drill a hole between the seal and rear bearings in my boat trailer hubs and install a 1/8" npt stainless plug. Also, purchase US made bearings and races. I have read for several hours the pro's and con's of the different greases. I am very interested in using a polyurea grease because of the thixotropic properties they posess. I plan to install bearing buddies and 'purge' the grase from the bearing buddy, through the bearings, and out the plug hole. I can pump in new grease before leaving Florida to return home to S Indiana. There was a similiar setup on the original exle on the E-Z Loader trailer - pump grease in the front and it flowed through the bearing and exited between the rear bear and seal, through a couple of drillings and purged out the rear of the axle. I would sometimes pump some Mobil synthetic rear axle oil it them - that was the coolest the bearings ever run on the highway. That axle was not available when I replaced the axle on the trailer. I tow the trailer from S Indiana to S Florida once or twice per year. No trailer brakes, rig weighs about 3,000 pounds on a 3,500 axle.
The Vault hub uses a grease that becomes more viscous when towed and thickens to a grease when cool. Vortex hubs have a similar purge process, but from a zerk in the rear and purges out the front. They spec Lucas Oil Marine grease. I emailed Lucas Oil about using their x-tra Heavy Duty Grease (polyurea) but did not receive a response.
Is anyone using polyurea for their boat trailer bearings? I would purchase either John Deere Polyurea or Lucas Oil X-tra Heavy Duty grease?
The Vault hub uses a grease that becomes more viscous when towed and thickens to a grease when cool. Vortex hubs have a similar purge process, but from a zerk in the rear and purges out the front. They spec Lucas Oil Marine grease. I emailed Lucas Oil about using their x-tra Heavy Duty Grease (polyurea) but did not receive a response.
Is anyone using polyurea for their boat trailer bearings? I would purchase either John Deere Polyurea or Lucas Oil X-tra Heavy Duty grease?