Trailer Hub and bearings - SailNet Community
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post #1 of 4 Old 04-17-2010 Thread Starter
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Trailer Hub and bearings

I purchased my first boat last year, a 15' skipjack (never could find a year but think its late 70's) which came with a trailer. Needless to say I have no idea the last time someone did any maintenance on these hubs or bearings so I am replacing the tires and bearings. However, I have a question about the hub. I am pretty sure the axle is a 3/4" straight shaft and the hub is dirty and little bit rusty. I am having trouble finding a decent price on a new 3/4" hub so I am considering just cleaning up the old hub and just replacing the bearings, races, seal etc. What is the best solvent to clean up the Hub? How much rust is too much? Should I clean or just replace?

Thanks for the help!
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post #2 of 4 Old 04-17-2010
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I was recently turned on to SKF Speedi-Sleeve Installation

perhaps they will help you too.
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post #3 of 4 Old 04-18-2010
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I used to use gasoline to clean wheel bearings, although I'm very sensitive of the flammability danger. You don't want to breath gas fumes or let it contact skin. I've been told Kerosene is a better alternative. There are environmental water based degreasers available but I don't have any experience with them. Others have said " mineral spirits, 'GUNK', lacquer thinner, WD40." I suggest checking at automotive supply store.

Hubs are usually cast iron, and will always be prone to rust. The races and spindles should be polished and free of rust. Also consider how you will be using the trailer. If you are doing extended trips at highway speed, you should be meticulous about the wheel bearings. No one likes to see those trailers on the side of the road missing a wheel. If you are doing occasional local trips to the launch ramp, you probably don't need perfection. In either case, trailer bearings should be re-packed annually.

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post #4 of 4 Old 04-19-2010
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Castrol Super Clean (aka "Purple Stuff) is great for cleaning hubs, bearings, etc. It is non-flammable - citrus based. Rubber gloves recommended.
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