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Genoa, Illinois | Does anyone know if the Deere's SD polyurea grease is shear stabilized? I have the polyurea for the sprayer suspension and was wondering if I need to worry about compatibility issues with the other grease used on the farm. |
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| Doesn't say but here is a capture of the polyurea spec out of the JD pdf on their greases.
 (polyurea.JPG)
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 polyurea.JPG (82KB - 215 downloads)
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SE North Dakota | Roughly how much is it per tube? |
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SE MT | Stuie - 3/22/2017 13:32
Does anyone know if the Deere's SD polyurea grease is shear stabilized? I have the polyurea for the sprayer suspension and was wondering if I need to worry about compatibility issues with the other grease used on the farm.
If you don't mind me asking, what's special about the sprayer suspension? What kind of grease requirements do you seek for it?
The JD polyurea grease has a horrible Timkin OK load rating and I stopped using it years ago... if you leave it in your pickup on a hot day the grease will melt in the tube. I've switched over to a different brand of grease that maxes out the timken scale and has nearly zero water washout (stays put) and have been really happy, if interested, just e mail me. [email protected] |
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Nwmo | I'm pretty sure it is, and if I remember right it's compatible with everything except calcium based grease.
I use Lucas extra heavy duty which is a polyurea, but is cheaper. And a little thicker. |
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| Here is a compatibility chart.
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image.jpeg (108KB - 194 downloads)
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| TY6341 14 oz cartridge "here" was $3.59 bought during parts sale regularly $3.99 |
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Genoa, Illinois | I looked at a couple charts and found that polyurea is widely compatible as long as it is shear stabilized. If it is not polyurea is compatible with basically nothing and that is what worries me. I also use calcium sulphonate and lithium complex with or without moly greases, which play nice. I will see if I can find someone at Deere to give a definite response. |
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Genoa, Illinois | dieselfume1, I really don't know if there is anything special about the suspension. I don't own the spray, but I do the maintenance and Deere recommends the SD polyurea grease so that is what I use. I really don't know why a moly grease would not be a good replacement. |
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SE MT | Stuie - 3/23/2017 08:45
dieselfume1, I really don't know if there is anything special about the suspension. I don't own the spray, but I do the maintenance and Deere recommends the SD polyurea grease so that is what I use. I really don't know why a moly grease would not be a good replacement.
Does not surprise me that Deere recommends their own grease for their machines. I'd look for another grease type. The polyurea leaves alot to be desired. Moly would most likely be an ok grease to use, but Deere's moly grease I've had a terrible time with getting so hard it will plug grease zerks. As I say, I won't run deere grease anymore. If you buy a higher quality grease you'll be able to use less grease and grease less often. It's worth the trade off. I'd use a calcium complex grease and be done with it. |
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| Why does the polyurea leave alot to be desired? We've been using it for years with no issues.....Seems to be an excellent grease |
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Seaford, Delaware | I don't quite understand John Deere's fascination with polyurea grease. It was designed for high-speed electric motors and doesn't offer much load bearing characteristics. Deere has better greases in those applications in my opinion.
Alan
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SE MT | The load rating of that grease is a very dismal 45lbs. I've never even heard of another grease that tests that low... maybe some off the shelf wall mart super tech stuff. If you're trying to protect expensive components, bearings, pins, bushings, U joints, it makes no sense to use an inferior grease when there's so much better out there... |
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John deere polyurea grease
