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SUBJECT: # 13208: Oil Bath to Grease

Submitted by 4fishlips from GEORGIA on 11/10/2008 12:41:00 PM

OK I have a 1997 Ranger Trailer and I want to convert the wheel bearings from Oil bath to grease can someone please tell me what all I need to do.

  1. 11/10/2008 1:12:00 PM Submitted by MikeF from FL says why
    They changed from grease to oil bath because it's a better system. Why do you want to change back?

  2. 11/10/2008 1:58:00 PM Submitted by rangerr71 #10712 from NC says Oil Hubs
    Yeh ????????? Why would you want to change back to grease ????????

  3. 11/10/2008 10:31:00 PM Submitted by Jeff Hahn from OH says Oil to Grease
    You can change from the oil bath hubs back to grease hubs. There's a simple way and the right way.

    The simple way is to just pack the current hubs with grease and put a Bearing Buddy on the end of the hub instead of the current end cap with the clear window. The spare hub on my Ranger Trailer is filled with grease and has an old metal end cap, just like my 1991 Ranter Trailer had. I have used the spare hub with the grease in it one time when I had a problem with an oil bath hub and it worked fine for a couple weeks until I got the stuff to repair the oil bath hub. The only problem, of course, is that the spindle on the new trailers is not drilled through the center like the older trailers had. As a result, you won;t be able to grease the hubs through the spindle and will have to repack the hubs with grease by hand.

    The "right" way to do the job is to replace the spindles on your trailer with the older style that are drilled through the center. That's not likely going to be cheap and, depending on your skills and tools, you may not be able to do this job yourself. Call Ranger and get a price on parts and a deion of how much work is involved in the conversion.

    Frankly, I'm not completely convinced that oil bath are far superior to the old greased hubs. The oil bath hubs may not need routine maintenance, but when you do have to service them yourself, it does seem like it takes a lot more time and is more work than the old greased hubs.

    Jeff Hahn

  4. 11/11/2008 12:40:00 PM Submitted by 4fishlips from GA says Why Answer
    About every 3 months I have to replace the oil because it starts turning milky and I know it is getting water in it and I think its a seal problem and I can't fix it or don't know how to fix it. I put them in the right way but its like after a couple of months they start allowing water in so I thought with going back to grease that maybe that would help, I don't know what to do.

  5. 11/11/2008 1:03:00 PM Submitted by Jeff Hahn from OH says Milky oil
    Do a search on this page using COOL Hubs as the key words. There's been a lot posted on this topic in the past.

    The short answer is that milky oil is NOT a problem until it starts to get chunky, like spoiled milk. One drop of water will turn the oil milky and you can get that one drop from condensation, by backing warm hubs into the cool lake water. Unless oil is visibly leaking from your hubs, there is NOT a problem. Forget the milky oil, trailer your boat as usual, and then change the oil once a year when winterizing.

    Jeff Hahn

  6. 11/12/2008 7:29:00 AM Submitted by 4fishlips from GA says Thanks
    Thanks for all the info people and I have never thought about the condensation thing so I will keep the oil bath and just keep a eye on it.

  7. 11/25/2008 12:15:00 AM Submitted by gclark #11957 from KS says I beleive in Cool Hubs....
    Even though I had a hub explode on me this weekend! Truly it exploded! I guess I had a seal go bad on the way back from the lake and it melted the cool hub cap and there were bearings everywhere! Thank god the thing was still under warrenty as I need a entire hub with the spindle. WOW what a mess! First trouble in 12 years of owning Cool Hubs but boy it was a big one! Greg

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