![]() I tow my boat across the 110*desert at 70 mph 180miles ea way 2 or 3 times a month with small low profi trailer tires (dont know what the rpm is on one of them small tires, but its alot)so good bearings that are well mantaned are must for me. Find the top 100 most popular items in Amazon Sports & Outdoors Best Sellers. i would never just pump grease through the hub TRYING to replace the grease if had any signs of water coming out of the hub it just dosnt make any since. Discover the best Boat Trailer Bearings, Hubs & Springs in Best Sellers. i have buddy bearings on my trailer and keep enough grease to keep the spring 1/8" from the top as not to blow out the seal, but never have to put grease in the between the yearly inspection and repacking, if the spring keeps presure on the grease inside the hub there no place for the water to enter the inside of the hub ,the trick is to pack the hub full of grease with no air pockets and not to blow out the seal with to much presure, i have never taken mine apart and had any signs of water and the grease looks like the day i put it in. Man grease and seals are cheep so i clean and repack every year or less takes maybe a half hour to do each axel end but time well spent, got be nothing worse then sitting on the side of the road out in the middle of the desert on a 120* day with burnt up bearings or worse the axle end ground up. I am heavily medicated at this time and it's hard for me to understand myself much less than to expect anyone else to. Guide Poles: Load It The First Time Shop >. Upgrade to PowerTech SS SM/Med Hub Prop Upgrade to PowerTech SS Large Hub. Universal Galvanized Boat Trailer Spare Tire Mount and Hardware Kit. However, it seems to me that if they were built in that way, wouldn't grease be "slung" out at highway speeds? BackTrack Single Axle Aluminum Trailer BackTrack Tandem Axle w/Brakes. If that is true, then I would assume that they should be greased quite often to remove any water contamination. I was under the impression that "buddy" bearings do not have seals on them so adding too much grease would only cause the excess grease to be ejected. Once too much grease is added, whether by mistake or from lack of knowledge, the bearings life goes out the window and they only last a short time. They hold up quite well under that condition. ![]() That's why we only grease those type bearings once a week and then it is only one pump from the gun. We are told that if you can see grease oozing out through those seals, the seal is blown. On regular bearings with rubber seals on both sides, the bearing will last months as long as the seal holds up. The equipment is high pressure washed down with water several times a day. That being the case, wouldn't adding grease till you see it oozing out, in reality, be "blowing" the seal? In my line of work, we replace dozens of bad bearings on the equipment, nearly every day. We are proud to serve the Trailer and Marine Industries. Our team is dedicated to getting you the right parts for any trailer projects you may endeavor. It was my impression that "buddy" bearings rely on the spring to hold the grease in and the water out during the quick temperature changes brought about by the cooler water hitting the warmer bearing and spindle. Vortex Hub Dust Cap Fits 5 Lug Vortex Hubs Screw On Features Seal Tight O Ring Part 48355V AT 3021.
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