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Help with greasing trailer wheel bearings jeffc 01-27-2008
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Posted by jeffc on January 27, 2008, 5:09 pm
Have a new trailer that I had to put together, and have to pack the wheel
bearings with grease. Not sure how to do it.

I have this grease
http://www.greengrease.net/kitinfo/3-pack/3pack3ounce.html

The top is a little cap that comes off, and I can see the grease inside.
The bottom is metal, but has a hole in it that is just covered by a thin
material that looks like aluminum foil (the sort of thing toddler's drinks
have that you poke through with a straw.)

The mini grease gun looks similar to this
http://doitbest.com/Grease+Guns+and+Fittings-Plews+Lubrimatic-model-30100-doitbest-sku-585262.dib

So, how does the grease pack go in there? Am I supposed to puncture that
seal, and if so, which way does the cartridge go into the grease gun?

I assume I take the wheel hub off to grease? Or not?



Posted by professorpaul on January 27, 2008, 5:43 pm
Ok, the cap comes off, showing grease. This goes INTO the grease gun.
The piston will push against the foil/metal piece on the bottom. You
have to retract the plunger. There is usually a notch to hold it while
you put the sucker together. Then, with the cylinder with the grease
cart. inserted and screwed in, release the plunger.

Cycle the trigger a few times, and grease should come out of the
fitting at the end of the hose/tube. This gun is designed to put
grease in "Zerk" grease fitting. They look like a little round thing
with a ball bearing valve on the end. If you can't find this somewhere
on the wheel bearing assembly, you have the wrong tools.

Most assembled wheel systems should come already greased. If you DO
have to grease them (talk to the people you bought the stuff from!),
then you have to remove the dust cap (carefully pry it out), remove
the usual cotter pin and castelated nut, carefully pull out the wheel/
rim and bearings. The bearings need to have a WHEEL BEARING GREASE
worked into the bearings.

Again, TALK to the people you got this stuff from. A grease gun is
generally used to lubricate things like ball joints in a automobile
steering system, like my Jeep Cherokee.

Hope this helps.

/paul

Posted by Oren on January 27, 2008, 6:55 pm
On Sun, 27 Jan 2008 14:43:21 -0800 (PST), professorpaul

> A grease gun is
>generally used to lubricate things like ball joints in a automobile
>steering system, like my Jeep Cherokee.

I recall grease guns being used for thirty years or more on trailer
wheel bearings. BTDT, having lived around salt water and boat
trailers.

The reason I suggest bearing buddy dot com.

A local marine shop will have these - possibly!

Oren
--

Posted by Rich256 on January 27, 2008, 7:13 pm
> On Sun, 27 Jan 2008 14:43:21 -0800 (PST), professorpaul
>
> > A grease gun is
> >generally used to lubricate things like ball joints in a automobile
> >steering system, like my Jeep Cherokee.
>
> I recall grease guns being used for thirty years or more on trailer
> wheel bearings. BTDT, having lived around salt water and boat
> trailers.
>
> The reason I suggest bearing buddy dot com.
>
> A local marine shop will have these - possibly!
>
> Oren
> --

Bearing Buddies are fine for boat trailers. The inside pressure keeps
the water out but even they should be taken apart and packed.

If you have E-Z Lube axles they don't need frequent lubes. RV
traielrs recommend annual packing. Even (Especially?) those that
don't do a lot of travel.

http://www.dexteraxle.com/e_z_lube_system


Posted by Oren on January 27, 2008, 8:16 pm
wrote:

>> On Sun, 27 Jan 2008 14:43:21 -0800 (PST), professorpaul
>>
>> > A grease gun is
>> >generally used to lubricate things like ball joints in a automobile
>> >steering system, like my Jeep Cherokee.
>>
>> I recall grease guns being used for thirty years or more on trailer
>> wheel bearings. BTDT, having lived around salt water and boat
>> trailers.
>>
>> The reason I suggest bearing buddy dot com.
>>
>> A local marine shop will have these - possibly!
>>
>> Oren
>> --
>
>Bearing Buddies are fine for boat trailers. The inside pressure keeps
>the water out but even they should be taken apart and packed.
>
>If you have E-Z Lube axles they don't need frequent lubes. RV
>traielrs recommend annual packing. Even (Especially?) those that
>don't do a lot of travel.
>
>http://www.dexteraxle.com/e_z_lube_system

Nice link.

Even a bearing buddy will lube the inner bearing/racer, packs the
outer bearing also. Fills the spindle and bearings with grease. Also
purges containments away from the bearings.

Depends on the needs and who's horse is in the race...:)


Oren
--

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