Welding on track roller/flange M Crawler

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   Hi guys

I have several track rollers that the flange is gone from one side.  

I have had some mild steel rings (1/4" steel) made that I plan on 
welding on to these rollers.  

Any tips on welding this mild steel to the steel cast roller material? I really don't want to disassemble the roller and I'm worried about whether or not I need to preheat them.

I have 0.035 wire feed & was thinking of doing skip welds and then coming back after the roller had cooled down to fill in between skips.

Edited by nowaktj - 14 Dec 2013 at 7:18am

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nowaktj Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 13 Dec 2009 Location: Elk River, MN Points: 728	Post Options Post Reply Quote nowaktj Report Post Thanks(0) Quote Reply Topic: Welding on track roller/flange M Crawler Posted: 14 Dec 2013 at 7:16am
	Hi guys I have several track rollers that the flange is gone from one side. I have had some mild steel rings (1/4" steel) made that I plan on welding on to these rollers. Any tips on welding this mild steel to the steel cast roller material? I really don't want to disassemble the roller and I'm worried about whether or not I need to preheat them. I have 0.035 wire feed & was thinking of doing skip welds and then coming back after the roller had cooled down to fill in between skips. Edited by nowaktj - 14 Dec 2013 at 7:18am
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Dozer Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 16 Aug 2011 Location: SW New York Points: 689	Post Options Post Reply Quote Dozer Report Post Thanks(0) Quote Reply Posted: 14 Dec 2013 at 7:49am
	I did the same thing many years ago. I used hard facing rod. I think I put more heat in the roller than you will be able to with your wire welder. Anyway I didn't preheat and I didn't crack anything. The mild steel rings are going to rust rapidly. The fact that the flanges are gone on one side means you have an alignment problem that needs fixing. Good luck

sandman2234 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 21 Feb 2013 Location: Jax Points: 2547	Post Options Post Reply Quote sandman2234 Report Post Thanks(0) Quote Reply Posted: 14 Dec 2013 at 7:50am
	Good luck with it!! David from jax Edited by sandman2234 - 14 Dec 2013 at 8:09am
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Dozer Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 16 Aug 2011 Location: SW New York Points: 689	Post Options Post Reply Quote Dozer Report Post Thanks(0) Quote Reply Posted: 14 Dec 2013 at 8:02am
	Yes welding cast iron is dificult. The hard facing rod I used was for cast iron. Some cast iron cracks as the weld cools. It is likely that I had good luck because I was using a stick welder that put down a lot of metal and sl*g. Because of the large amount of metal I was putting down it cooled slowly and didn't crack. When in doubt try it and see how it goes. Take pictures and let us know.

Coke-in-MN Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Location: Afton MN Points: 41824	Post Options Post Reply Quote Coke-in-MN Report Post Thanks(0) Quote Reply Posted: 14 Dec 2013 at 11:31am
	Seems there will be a seal and a bearing and lube of some kind involved - heat may destroy these items Are the rollers cast or are they forged malleable iron. Welding on cast can be done by first laying down a cast alloy rod base (buttering) then overlay with a steel base rod - 7018 / 7024 then finishing with a facing rod of higher wear properties . So if you stick weld or use a stainless wire first - then weld up with E70S wire it would work if cast. Take your grinder and test base metal for composition, check spark color when grinding - red - yellow - or ? it will tell you the base material - check those sparks against a known metal or you new rings .
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steve(ill) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 85634	Post Options Post Reply Quote steve(ill) Report Post Thanks(0) Quote Reply Posted: 14 Dec 2013 at 11:52am
	Rollers are not cast iron or they would be brittle and break. Edges wear and roll over, cast iron dont do that. They can be cast steel or forged steel. Either way, you should be able to weld on it with 7018 rod, or E70 wire feed. I saw a factory weld up rollers like this. They put the shaft on two VEE blocks and welded on the top. Had a pan of water on the bottom so when they turned it, it cooled down as they turned it. You dont have to worry about the oil and seal unless your over 250 degrees or so. I would not weld on them if they are outside and 20 degrees.. If you up to 70 degrees ambient or preheat them to that temp you should be o.k. Make sure you ground thru the roller and NOT thru the shaft and bearings. Dont want any bad spots on the bearings. I doubt a wire feed can lay metal fast enough to heat the roller over 250 degrees. STart with skip weld to get it tacked on and straight, then just weld 4-5 inches, roll 45 degrees, weld again, and keep going round and round.
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steve(ill) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 85634	Post Options Post Reply Quote steve(ill) Report Post Thanks(0) Quote Reply Posted: 14 Dec 2013 at 11:53am
	Make sure the rings have a good deep VEE notch to fill with weld. IF you just put a couple passes on the top, it will wear off and the ring fall off.
	Like them all, but love the "B"s.

everett048 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: uk Points: 619	Post Options Post Reply Quote everett048 Report Post Thanks(0) Quote Reply Posted: 14 Dec 2013 at 2:35pm
	Terry a good friend of ours did just what you are going to do his lasted about 3-4 years the constant hammering on the track chains flattened the rings and they came off.He is now looking for later track frames to put the larger diameter rollers on his M.