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Thread: Wheel bearing grease

  1. #1

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    Wheel bearing grease

    Aircraft wheel bearings, in my opinion, are no big deal when compared to auto front bearings, but I just opened up a set of Clevelands with blue grease in there! It looked like they had been repacked yesterday, but I know they had at least 200 hours on them. Anybody know what kind of grease is BLUE?

    I opened up a tailwheel done by one of the great restorers in Arizona a few years ago, and that grease was a pleasing shade of burgundy. Neat stuff, but the only thing I found to match it was non-disc brake automotive grease.

    Only thing I really know about aircraft greases, other than maybe there needs to be a PMA or something, is that it doesn't need to be high temp, like auto grease. The Mechs at Ransome cautioned us never to use their expensive grease in our old beat-up cars, since car bearings run continuously at higher temps.

  2. #2
    behindpropellers's Avatar
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    I have some blue lithium grease for the boat trailer.

    We took the wheels off of this cub and the bearings fell out.....I wonder why?


  3. #3

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    Kendall high temp. Been using it for years. Thats all I remember. It is great stuff.

  4. #4
    Nathan K. Hammond's Avatar
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    I think 4612 is correct, Kendall. Comes in a big butter tub.

    nkh
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  5. #5

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    Since stock Cub wheels are not sealed well [felt washers instead of seals],
    I use boat trailer waterproof grease. It has worked fine for years. Those little boat trailer wheels spin a lot faster and longer than Cub wheels.

    Ron

  6. #6
    180Marty's Avatar
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    I thought Shell No. 5 was the grease of chose.
    Marty

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    i've had good luck with Mystik JT-6

  8. #8

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    Cleveland specifies Aeroshell Grease 22 in its manuals.
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  9. #9

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    OMC ( as in outboards) Triple Guard grease is dark blue. I assume it fits a mil-spec for aircraft grease. I have used it for at least 8 seasons. The majority of that time is outside in southcentral Alaska. Ocean beaches are probably 30% of my use.

    speaking only from that experience, I would recommend this stuff unconditionally.

  10. #10
    marinelubricants's Avatar
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    Maybe the blue grease is the Bel-Ray water proof that is used by many dirt bike riders. Jerry McCammon

  11. #11

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    I was in the John Deere dealer today and seen a tube of HD Water Resistant Grease on the shelf, real nice blue in color, and says very good resistance to salt water, part # on the tube was TY24425. doug

  12. #12
    Cranman
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    Wipline recommends Mystic JT6 for their amphibs.

  13. #13
    Crash's Avatar
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    Grease

    For the tail wheel pivot head I use Polaris snowmobile suspension grease. It is made for low tempartures and won't get stiff like the other stuff will. Crash

  14. #14
    sjohnson's Avatar
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    Anyone else having trouble finding Aeroshell 22 grease in tubes? Is there an alternative?
    There are three simple rules for making consistently smooth landings. Unfortunately no one knows what they are.
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  15. #15
    txpacer's Avatar
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    Amazon says it has it for $29.99 a tube. Mobilgrease 28 meets the same milspec.

  16. #16

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    I have been using Red “N” Tacky #2 for decades. Lucas Oil product. Doesn’t migrate from bearings that are not protected by seals. Side of tube says it is has “Good cold weather characteristics”. “Especially good for sliding surfaces.” Good for boat trailers and wheel bearings. “NLGI rated GC-LB, the highest rating given for chassis and wheel bearing grease.”
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  17. #17

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    Silkolene is blue or at least the 5# tub I’ve been working thru for the last 35 years , amazing stuff...
    Remember, These are the Good old Days!
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  18. #18
    irishfield's Avatar
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    Quote Originally Posted by OLDCROWE View Post
    Silkolene is blue or at least the 5# tub Iíve been working thru for the last 35 years , amazing stuff...
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  19. #19

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    Hmmm. Obviously nobody has their wheels falling off for lack of some super sacred special precision grease!
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  20. #20
    wireweinie's Avatar
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    Quote Originally Posted by salex View Post
    Hmmm. Obviously nobody has their wheels falling off for lack of some super sacred special precision grease!
    Nope. More important to keep it clean and repack at least each annual. If you are in water use something that withstands water better such as some type of 'marine' grease. And keep it clean and repack at least each annual . . . .

    Web
    Life's tough . . . wear a cup.
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  21. #21
    hotrod180's Avatar
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    Quote Originally Posted by wireweinie View Post
    .... keep it clean and repack at least each annual . . . .
    That's funny to hear you say that.
    I get chided by some because I do clean & repack the wheel bearings every annual.
    I don't care to (try to) grease the tailwheel & t/w head using the zerk fittings--
    I clean & regrease the t/w head assembly & wheel bearings every year too.
    Cessna Skywagon-- accept no substitute!

  22. #22

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    SHC 100 is what Iíve moved to, mostly because it works down to -65F (supposedly) and is highly resistant to water contamination
    https://www.parker.com/literature/Ai...emos/PRM78.pdf
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  23. #23

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    I generally use aeroshell 64 (used to be 33MS) but I'm land only and have no idea how it would perform in water. Aeroshell also make a 58 grease that specifically is touted for wheel bearings and says it is highly resistant to water washout and corrosion. Might be something worth trying.

    Wayne

  24. #24
    wireweinie's Avatar
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    Quote Originally Posted by hotrod180 View Post
    That's funny to hear you say that.
    I get chided by some because I do clean & repack the wheel bearings every annual.
    I don't care to (try to) grease the tailwheel & t/w head using the zerk fittings--
    I clean & regrease the t/w head assembly & wheel bearings every year too.
    I was taught that it's part of a 100 hr or annual inspection. And how can you inspect the bearings and races if you don't clean the grease off them? (Thank you to all the instructors at my A&P course in Winona).

    Web
    Life's tough . . . wear a cup.

  25. #25
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    Quote Originally Posted by salex View Post
    Hmmm. Obviously nobody has their wheels falling off for lack of some super sacred special precision grease!

    So it's my first time re-packing aircraft wheel bearings. Thought I was doing good, got them all cleaned up, blown out and re-packed with bearing grease and re-assembled. Then I get reading on the internet to use an aircraft specific grease. The grease I used was some I had on hand. It says "Premium Hi-Temp Disc brake Wheel Bearing Grease NLGI No.2". Also says "Fully additive treated for EP/antiwear, rust, and oxidation inhibited". So are my wheels going to fall off? Should I re-do with an aircraft specific grease?

  26. #26
    wireweinie's Avatar
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    You're fine.

    Web
    Life's tough . . . wear a cup.
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  27. #27
    cubdrvr's Avatar
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    Quote Originally Posted by wireweinie View Post
    You're fine.

    Web
    I dunno Web...........last time I did that the wheels fell off !
    "Sometimes a Cigar is just a Cigar"
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  28. #28
    wireweinie's Avatar
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    Come on! That's when you installed skis.

    Web
    Life's tough . . . wear a cup.
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  29. #29
    jrussl's Avatar
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    I have been using NAPA grease for 17 years and my wheels havenít fallen off yet.


    Sent from my iPhone using SuperCub.Org
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  30. #30
    KJC's Avatar
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    Out of a brand new set of Cleveland Wheels. What does NLGI 2 mean?

    Click image for larger version. 

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    PA-12 N418BS

  31. #31
    frequent_flyer's Avatar
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    Quote Originally Posted by KJC View Post
    Out of a brand new set of Cleveland Wheels. What does NLGI 2 mean?
    https://www.nlgi.org/grease-glossary/nlgi-grade/

    https://www.nlgi.org/glossary/p/
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  32. #32
    BC12D-4-85's Avatar
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    I like the food analog. It's something I can relate to, especially in winter: https://en.wikipedia.org/wiki/NLGI_consistency_number

    Big takeaway is don't mix them. If you see the oil used for lube separating from the thickener try something else.

    Gary

  33. #33
    Supercruiser46's Avatar
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    While on the subject, is there a special tool or trick that would aid in getting that snap/retainer ring back in there? I found that to be the most difficult part of the procedure. I managed but I did some talking to myself and had sore fingers afterwards.

  34. #34
    wireweinie's Avatar
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    Just get one end started and work all the way around the circle until the other end snaps into place.

    Web
    Life's tough . . . wear a cup.
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  35. #35
    Crash, Jr.'s Avatar
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    Think about what greases where available when Cleveland first certified their wheel designs. Or when Scott first designed the 3200 tailwheel. It's easy to over-think what grease to use.
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  36. #36
    wireweinie's Avatar
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    Yup. The only taboo I can think of is mixing greases. Always bad stuff.

    Web
    Life's tough . . . wear a cup.
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  37. #37

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    https://www.kitplanes.com/grease-options/

    Ha, Kitplanes has an article on grease!
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  38. #38
    BC12D-4-85's Avatar
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    How much am I bid for the best grease in Alaska?

    Gary
    Attached Images Attached Images  

  39. #39
    algonquin's Avatar
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    I went thru this when I first became a A& P and what I found was there are different thicking agents used in grease. They aren’t comparable and will cause the grease to harden and cake and stop lubing. More common is mixing reg. And synthetic greases. I use what is called for by the manufacturer. If nothing is called for I use Aeroshell 22. For water environment I use “Green Grease” that the name of it. WipAir has it listed as a approved grease so it’s legal. It work fantastic on the wheel bearings on the floats. Check Mil-Spec # if you don’t have anything else they will mostly be compatible.

  40. #40

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    Exactly - more important than choice of generally accepted greases is the principle of not mixing them.

    Also, ASG22 has largely been replaced by SHC100 because: ASG22 is "One of three widely used wheel bearing greases in civil aviation including Mobil Grease 28 and Mobil SHC 100. ASG 22 business lost to Mobil SHC 100 as it is also a synthetic hydrocarbon fluid but with a lithium complex soapthickener. This thickener system provides a higher dropping point, excellent resistance to water wash, and a tenacious structural stability. Both ASG 22 and Mobil Grease 28 are clay thickened hence the need to develop ASG 58."
    Microsoft PowerPoint - AeroShell Grease Facts.pptx (jota.net.pl)



    Quote Originally Posted by algonquin View Post
    I went thru this when I first became a A& P and what I found was there are different thicking agents used in grease. They aren’t comparable and will cause the grease to harden and cake and stop lubing. More common is mixing reg. And synthetic greases. I use what is called for by the manufacturer. If nothing is called for I use Aeroshell 22. For water environment I use “Green Grease” that the name of it. WipAir has it listed as a approved grease so it’s legal. It work fantastic on the wheel bearings on the floats. Check Mil-Spec # if you don’t have anything else they will mostly be compatible.

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