bearing oil

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Hi.  I got my vintage hoover 700 up and running yesterday and i used vaseline on all the moving parts and bearings.  Unlike oil it wont evaporate or dry out in time and will constantly lubricate the parts and prevent any rust or dryness. 


 


As an example i have a padlock on my garage door.  I bought the lock and the first thing i did was stuff vaseline inside the lock and 12 years later the outside is rusted but it stil works like the day i got it as the inside mechanism is rust free. That is what i swear by anyway but if you must use oil maybe try 3 in 1 oil. Hopefully someone else can tell you different as that might not be an oil to use on vacs. I dont want to give you wrong advice and would not want you to break your numatic vac.
 
I'm going to try the vaseline, it sounds good.

I normally drop some 3 in 1 oil into closed bearings. Anything I can split open, or stip to component form gets repacked with some ancient Castrol grease.
 
Bearing oil

For vacuum cleaner motor bearings, I would recommend GENUINE 'sewing machine oil'. This is obtainable from anywhere which sells/repairs 'Brother' professional sewing machines. (It is thin and clear, and looks like 'Liquid Paraffin'). Vacuum motors spin fast and run HOT. Cheaper oils (such as '3 in1') will oxidise and become sticky, not only holding dust and other contaminants, but also filling the pores in the Phosphor Bronze with sticky goo, which will drastically shorten the life of the bearing.

I'm not sure that Vaseline (petroleum jelly) is such a good idea, either... It will liquify in the heat and run out of the bearing.

Any other opinions on this, please??

All best

Dave T

P.S. Brushrolls run slower and cooler... Use whatever oil you wish... ;)
P.P.S. this applies equally to any high-speed bush-bearing motor. Drills, routers, hedgetrimmers, etc.
 
You must....

...use bearing grease which is designed for exactly that purpose! It is designed to tolerate the friction and the heat that is a result of it! Vaseline will break down quickly and run out like water or at least evaporate from the heat. Sewing machine is also not a good alternative as it burns off quickly leaving behind a detergent that attracts dust and dirt! A wick bearing such as the Royals have should be oiled with SAE 30 oil--only two - three drops of oil. Wait several hours to let the wick absorb it before running the machine otherwise the wick will "spin it off" and splash the armature thus causing damage. Lubriko is a brand of lithium bearing grease that is suitable for most applications and is temperature stable. They probably make a variety of bearing grease products for various applications. Remember guys....the right tools yield the best results!   Check your local hardware store or even perhaps a Sears. 
 
Just what kind of bearings are you lubing-Ball bearings need grease-sleeve bearings non detergent oil.DON'T try to lube sealed bearings-you will ruin them.Those you have to replace.A bearing puller and small arbor press are handy for that job.
 

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