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HelicopterThunder TigerOther › Best LUBE for thrust bearings?
11-30-2005 04:43 AM  12 years agoPost 1
Ducatidesmo

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Redmond, WA

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What do you guys think... yes I did do a search on this topic, but wanted to ask for myself.. What lube (oil or grease) do you recommend for the thurst bearings in the blade grips?

I was thinking some grease because the thrust bearings are isolated from any dirt by the ball bearings. ..

any help would be great!

Thanks
Derrick

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11-30-2005 08:25 AM  12 years agoPost 2
MicroDOC

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Goleta, CA

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I use a white lithium based grease with the "greaser".

Experience is something you don't get until just after you need it!

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11-30-2005 09:44 AM  12 years agoPost 3
Al Magaloff

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Synthetic wheel bearing grease( Mobil 28) in The Greaser. Assemble bearings with open side of cage facing in towards the center.

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11-30-2005 10:24 AM  12 years agoPost 4
Ducatidesmo

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Redmond, WA

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Thanks for th replies... have a question though.. why would you need "the greaser" on an open type bearing like the middle of the thrust??

Derrick

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11-30-2005 10:29 AM  12 years agoPost 5
Al Magaloff

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You wouldn't, but you will for the radial bearings. How's that Ducati run?

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12-01-2005 01:10 AM  12 years agoPost 6
jzeller

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Victoria, MN - USA

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Moly grease has been working well.

John

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12-01-2005 01:38 AM  12 years agoPost 7
the collective

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Bayside, NY, U.S.A

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I'll second the moly grease. I've been using Bosch CV grease forever. I bought some to do the CV's on a Volkswagen bug back in 1978 or so, and the leftover from that job has been with me ever since. GREAT stuff.

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12-01-2005 03:04 AM  12 years agoPost 8
LS1Heli

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Darien, Illinois

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I have been lubing the dampners, spindle, and thrust bearing assembly with dielectric grease and have had great results.

Raptor 90SE

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12-01-2005 03:07 AM  12 years agoPost 9
Ducatidesmo

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Redmond, WA

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what about lithium grease, and not the crap in the spray can, the stuff in the big jar that you re-pack bearings (automotive) with?... of coruse that's what we are doing aren't we?

Derrick

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12-01-2005 10:39 AM  12 years agoPost 10
Al Magaloff

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LS1, I would not use dielectric grease in/on bearings. As with Lithium grease, the shear strength is just not there. Lithium grease was big news back in the 1940's.

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12-01-2005 03:02 PM  12 years agoPost 11
RevGadget

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Decatur, Alabama

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I agree with Al. Dielectric grease is silicon based and not good for bearings in my expereince.

If you use a silicon based grease for the damners and spindle, make sure it does NOT get to the bearings. Dielectric grease is commonly used for electrical connections to keep them from corroding.


3D2me= One eye on the Tx, one on the Heli and my thumbs in between.

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12-01-2005 05:07 PM  12 years agoPost 12
Ducatidesmo

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Redmond, WA

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alright so we know what to use on the thrust bearings. (man that's expensive..) what about the spindle and dampners if dielectric grease isn' t good. and why would silicone not be good? there couldn't be that much of a chemical reaction or is it that the stuff just wicks away?

Derrick

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12-01-2005 05:27 PM  12 years agoPost 13
Al Magaloff

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Dielectric is best for the dampeners and spindle.

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12-01-2005 05:50 PM  12 years agoPost 14
RevGadget

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Decatur, Alabama

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Cause

Over time, the silicon grease will wear out a bearing. The grease or Lub on bearings is suppose to provide a thin film between both metal surfaces. Therefore, many manufacters warn against using a silicon based grease in bearings because silocon can cause more friction. A good lub or grease is designed to counter friction. So there is an increrased chance silicone grease could cause premature bearing failure.


3D2me= One eye on the Tx, one on the Heli and my thumbs in between.

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HelicopterThunder TigerOther › Best LUBE for thrust bearings?
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