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Old 04-03-2016, 04:44 PM   #1
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Brake hubs and grease

Is there any justifiable reason to pack the center cavity full of grease when doing a repack and brake job.

Seems like a waste to me.
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Old 04-03-2016, 05:28 PM   #2
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Its a waste unless you have a boat trailer with bearing buddies.
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Old 04-03-2016, 05:52 PM   #3
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Is there any justifiable reason to pack the center cavity full of grease when doing a repack and brake job.

Seems like a waste to me.
That's not only a waste, but that would also create a huge problem, by destroying the effect of the brake shoes.

Some grease would slip out and get on the brake shoes. Then, NO BRAKES.

Cleaning the shoes with a grease solvent, is also a waste of time. If that was done, the very first time the lining got hot, more grease would come to the surface, again and again.

Ask those that tried it.

Andy
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Old 04-03-2016, 06:24 PM   #4
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That's what I thought, but I just wanted confirmation. Thanks.
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Old 04-03-2016, 09:09 PM   #5
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Disclaimer.....I know nothing.




If the cap has grease in it.....the grease in the bearings has no place to go.

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So when is this..."old enough to know better" supposed to kick in?
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Old 04-03-2016, 09:17 PM   #6
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Likewise for the hub. Doesn't have to be completely full, but make a "dam" so grease in bearing has nowhere to go.
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Old 04-04-2016, 12:04 PM   #7
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When packing bearings, regardless if you do the hand or press method, at the put a thin layer all the way around the inner and outer circumference. That all you need. Slide the inboard bearing into the hub and replace the seal. Slide the hub onto the spindle and the the outboard bearing, washer, locking nut, snug up and spin the hub by hand. After your satisfied that you have it tight enough install the cotter key and dust cap. Use a rubber mallet to install the dust cap.

Hope this helps

Tony
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Old 04-04-2016, 12:36 PM   #8
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Boy, I guess my automotive school was way wrong...as well as my employer!
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Old 04-04-2016, 12:55 PM   #9
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The purpose of coating the inside of the hub is only to prevent moisture from creating rust on the inside of the hub. Otherwise there is no reason for grease to be inside the hub. Grease was made to be in the bearings. Having more grease in the hub does not make the situation better. It only creates a mess and possibility of retaining heat in the hub.

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Old 04-04-2016, 01:43 PM   #10
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Boy, I guess my automotive school was way wrong...as well as my employer!
Mine also.... We must have gone to different 'schools' together with the same instructor.

Bob
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Old 04-04-2016, 02:00 PM   #11
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Mine also.... We must have gone to different 'schools' together with the same instructor.

Bob
Funny part is it has been multiple instructors. Guess they all be dumb. Although, to be fair, today's high temp SYNTHETIC bearing grease doesn't thin out and run out of the roller area as badly as petroleum (non-synthetic) grease does.

But, I still maintain, a "dam" of grease around the inside and outside of the cups is cheap insurance. Gosh a tub of grease that lasts several years must cost ...what $6?
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Old 04-04-2016, 02:50 PM   #12
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I am not sure the type of grease matters.

http://www.brakeandfrontend.com/whee...what-when-why/

Heat does matter.

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Old 04-06-2016, 07:59 AM   #13
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Bearing grease

You guys have been a wealth of knowledge to us all. One question, if I may.....How often do you grease bearings. Sorry for butt-in.
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Old 04-06-2016, 08:03 AM   #14
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You guys have been a wealth of knowledge to us all. One question, if I may.....How often do you grease bearings. Sorry for butt-in.
I don't anymore! AS has Nevr-Lube hubs and disc brakes and I just sold my last vehicle with old fashioned bearings.

But previously, I packed trailer every 10K miles or 2 years, whichever occurs first. Still inspected, cleaned and adjusted brakes annually.

TV, every 15 - 25K miles
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