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Old 12-31-09, 05:24 PM   #1
TromboneAl
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Spray WD-40 on Spare Bearings

I have about 50 bearings that I probably won't use for a few months or longer. Around here, things rust very quickly. I figure I should spray them in the plastic bag, with WD-40.

Bad idea?
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Old 12-31-09, 05:27 PM   #2
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No, it's a good idea. WD-40 is a good rust preventative, it's just not a good lube so I'd wipe them off before putting them into service.
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Old 12-31-09, 05:31 PM   #3
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No, that's a pretty good idea. Also, one of the best corrosion inhibitors for storage of metal parts is Rigg gun grease.
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Old 12-31-09, 05:32 PM   #4
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make sure the bag likes WD40 first.
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Old 12-31-09, 05:54 PM   #5
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Bearings are typically stored with a small coating of grease on them.
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Old 12-31-09, 06:29 PM   #6
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Grease/Naval Jelly works very well, WD-40 is "water displacing" and can eventually rust.
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Old 12-31-09, 06:49 PM   #7
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Just lack them in a bag with grease. I live down on the South Carolina coast and this is common practice.
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Old 12-31-09, 07:07 PM   #8
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I have doused metal items with WD-40 and stored them in plastic bags for decades and never had anything rust. Squeeze out all the air.
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Old 12-31-09, 07:28 PM   #9
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..... WD-40 is "water displacing" and can eventually rust.
Not in my experience. "Water displacing" means that the WD displaces water, not the other way around. WD sprayed into a zip lock plastic bag will do just fine.

But so will a few drops of regular oil then squish the balls around to coat them with the oil.
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Old 12-31-09, 11:11 PM   #10
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Chromium grade 25 BB's will inhibit rust longer. But a spritz of WD-40 should be fine as well. Do check the container to make sure the plastic won't melt from the carrier in the WD. And do wipe the bearing clean before installing into grease.
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Old 12-31-09, 11:24 PM   #11
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slap some grease in the bag and be done.
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Old 01-01-10, 02:47 AM   #12
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I prefer to store my bearings in old 35mm film storage containers, or discarded pill bottles. Prevents corrosion and contamination, and the chance of spilt balls from torn plastic bags. But a squirt of WD-40 never hurts. I also include a silica gel baggy into my parts storage, tools, and where ever moisture control is desired. They seem to be packed with everything you buy these days. Beats tossing them in the landfill.
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Old 01-01-10, 03:59 AM   #13
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I use old mayonnaise jars. Good lids. Never saw a speck of rust or discoloring - even after several years. From now on - I think I'll put them in the large jars of Preparation H. Nice and anal?

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Old 01-01-10, 07:54 AM   #14
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Store them with a little bit of the same grease that you normally use for bearing overhaul and you won't have to wipe them off when they are put into use.
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Old 01-01-10, 07:59 AM   #15
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Quote:
Originally Posted by mike047 View Post
Grease/Naval Jelly works very well, WD-40 is "water displacing" and can eventually rust.
Naval Jelly is phosphoric acid, bad idea. It's meant for quick removal of rust not for long term prevention and then needs to be thoroughly rinsed and the metal must be promptly lubricated/oiled. If left on metal for long time it'll damage the metal. I know someone who used Naval Jelly to clean his chain but didn't bother to rinse it. The chain broke next day and upon closer inspection it was visibly "eaten" by acid.

WD40 needs to be reapplied every few weeks to be effective.

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Store them with a little bit of the same grease that you normally use for bearing overhaul and you won't have to wipe them off when they are put into use.
Even better idea. Just lock them up in something airtight so dust won't get in there.

Adam

Last edited by AdamDZ; 01-01-10 at 08:08 AM.
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Old 01-01-10, 09:10 AM   #16
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Quote:
Originally Posted by TromboneAl View Post
I have about 50 bearings that I probably won't use for a few months or longer. Around here, things rust very quickly. I figure I should spray them in the plastic bag, with WD-40.

Bad idea?
Have you ever shopped at an Industrial type hardware store like W.W. Grainger? They carry several brands of lubricants. Once is LPS Laboratories. The other is CRC Industries. Both have technical departments. The LPS is 800 241-8334. The CRC is 800 521 3168.

Give their technical departments a call and they will help you out as to what product from their line to use and why.
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Old 01-01-10, 09:17 AM   #17
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G-96, at any gun shop.
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Old 01-01-10, 11:37 AM   #18
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I keep mine in the house and have never had a problem with rust. I live within 6 miles of Galveston Bay and 20 miles to the Gulf Of Mexico and have not had a problem.
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Old 01-01-10, 12:32 PM   #19
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I keep mine in the house and have never had a problem with rust. I live within 6 miles of Galveston Bay and 20 miles to the Gulf Of Mexico and have not had a problem.
I store mine in small drawers in a "nut-and-bolt" storage unit and they never rust either despite being in an unheated garage and subject to major temperature swings.

Good quality balls (Grade 25) are usually "chrome steel", which while not really stainless steel, do resist rust a bit better than plain carbon steel balls. There are also true stainless steel bearing balls available.

BTW, Naval Jelly as a storage medium is a dreadful idea.
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