06-10-2014, 03:50 AM
the oil bath conversion replaces the grease in the bearings with oil , but like the oil adage says oil and water don't mix. the thing about boat trailers is you put them in the water,and if the hub is hot it will suck water right past the seal into the hub. that's why they have the grease zerks on them so if they are full of grease no water should get in. on a regular trailer oil bath would be a good option . not on a boat trailer.
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