changing over to oil hubs........ because of pic limits this is part 1
let me start by saying that there is nothing wrong with grease packed bearings have been using them for decades with no problems if adjusted right. but I have been changing all our shop trailers over to oil hubs now for the past 3 years and really like the results so I decided to install them on my boat trailer now I that I feel confident with them. I only put about 2000 miles on my trailer a year, but I clean, repack and check every thing out every year so I know I will not have any problems coming or going during fishing season, and not having to deal with grease I thought would be nice. being a diesel mechanic all the semi trucks and trailers have been oil bath for over 40 years and always wondered why the small trailer industry hasn't done it except for a few, the cost is more to produce but if you add the cost of bearing buddies it is pretty much a wash . you have the advantage of cooler running bearings, with the synthetic oil, you can always see the lube level so you know if there is a problem, don't have to wonder if water is in your grease or worry about over greasing and getting into your breaks. the seal is a uniseal and doesn't rely on the axle surface to seal . it seals inside it self just like the semi's. the hub is solid aluminum with a threaded heavy polycarbonate cap with an o-ring seal, again just like the semi's. so I will show you how I changed mine over, first the parts.
this is what I have now.
I put tape around the SS bearing buddies so I don't scratch them up when removing.
then pull the cotter pin, nut, washer, and bearings then the drum assembly and clean every thing up. check bearings and races if anything looks questionable replace it now! bearings are cheep compared to sitting on the freeway half way to your fishing spot, waiting for a tow truck because a bearing spun on your axle.
I like every thing to look good so I wire brushed primed and repainted the drums. on some drums you will notice a plug and a hole in the face of the drum it is for adjusting the brakes if you don't want to crawl underneath the trailer. makes it easy on reassembly.
now check your brakes and hardware and make sure every thing is in good shape. clean and blow off now you are ready for re assembly.