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Old 07-10-2017, 09:20 PM
NOBLNG NOBLNG is offline
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Default Crawler steering clutches

My buddy has an old crawler tractor and was asking me if I could make him some steering clutch plates out of stainless steel. He needs 12 of them total. I could likely make them for him, but I am not sure if stainless would work, as it does not dissipate heat well. Any one know if he should pursue this idea?
Thanks.
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Old 07-10-2017, 10:10 PM
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SmokinDodge SmokinDodge is offline
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What kind of crawler? Allis, cletrac, Deere?

I'll wager you can still buy them. That being said I don't see anything wrong with the one in the pic. Bead blast and run it. Any of the crawlers I've dealt with had a specific height for the clutches and the steels, are his worn too thin? Some, and by some I mean not me, folks stack what ever combo of new and old disks or even extra old discs to achevie desired stack height.


I'd be Leary of stainless, it could slip or worse, grab too much.
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Old 07-10-2017, 10:57 PM
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How precise do they need to be? If they can just be CNC plasma cut, then it would be a piece of cake.
I am guessing that this is a rarely used piece of equipment and the clutches rust up between use, or something to that effect. I wouldn't see any big issues with it, this is not a high speed situation and most of the time the clutches are static.
BTW, I know almost nothing about these, nor have I ever worked on them.
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Old 07-11-2017, 03:54 PM
NOBLNG NOBLNG is offline
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Yes, it is rarely used and he says they get rusted up badly and then wear out the discs. He can still get new ones, but they are made of steel. He wants to try it so I will try to plasma cut him some.
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Old 07-11-2017, 07:05 PM
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Do you have a CNC?
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Old 07-12-2017, 02:36 PM
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Quote:
Originally Posted by NOBLNG View Post
Yes, it is rarely used and he says they get rusted up badly and then wear out the discs. He can still get new ones, but they are made of steel. He wants to try it so I will try to plasma cut him some.
I'm not the crawler guy or the heavy equipment guy, but how the hell does the plate rust up when it is sandwiched between other plates and/or friction discs? I'm sure the clutches are in some kind of housing, not open to the air.

KoO would be my first call.
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Old 07-12-2017, 07:43 PM
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Quote:
Originally Posted by arizonian View Post
I'm not the crawler guy or the heavy equipment guy, but how the hell does the plate rust up when it is sandwiched between other plates and/or friction discs? I'm sure the clutches are in some kind of housing, not open to the air.

KoO would be my first call.
The old crawlers before oil filled came along, had a drain plug to let out
any condensation....allot of people forgot when they got the crawler in water/mud. Or forgot to ever remove said plug to drain out any leakage.

Seeing how they work, they burn off any oil during usage, it's common
to have them locked up tight, neighbors d-6 is probably permanently,
not because of anything I did....damn fool doesn't' understand how to get them
out, no matter how many napkin sketches I made for him.....

I don't remember ever seeing plain steel ones, most everyone I have seen has a bonded
material on them.
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Old 07-13-2017, 12:27 PM
NOBLNG NOBLNG is offline
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Yes I have a CNC plasma. A laser or water-jet would do a nicer job, but I'll see how close I can get. The tractor is a 195? International. My concern was weather or not stainless would be suitable?
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Old 07-13-2017, 07:48 PM
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I would use high carbon steel, it wouldn't need to be hardened, just wear resistant. Stainless iirc can be a bit gummy in a friction situation. It is just a multi-disc clutch, that uses a number of discs to get the friction surface needed in a small diameter instead of a large diameter as in a flywheel clutch.
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Old 07-16-2017, 04:05 PM
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If you are going to make it from stainless you should make it from either 420/430/440 martensitic or 17-4. 17-4 will be more corrosion resistant but not as hard HRC mid 40's at condition H900. The martensitic stainless steels will be harder but more likely to rust. Any of them will be more rust resistant than any carbon or alloy steel.

Do they need to be ground flat after cutting?
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