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Implement Alley Discussion Forum

Sprocket for IH 990 Mower Conditioner

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Robert Hensell

11-17-2006 13:16:15




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This spocket is approx. 12 inches in diameter and has 49 teeth and is driven by a no. 60 roller chain off of the crimper drive. It has a belt pulley on it that drives the reel. Mine has the teeth pretty well worn off. This is a cast pulley so welding is not a good option. Let me know if you know where one is.




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Don-Wi

11-19-2006 19:41:50




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 Re: Sprocket for IH 990 Mower Conditioner in reply to Robert Hensell, 11-17-2006 13:16:15  
What kind of bore is in it? If it is a straight bore w/ a key, you can replace it with a steel one no problem. If it has a spline or cluch of some sort, you can have the sprocket cut of the hub to make a step hub, then weld a new sprocket to the hub w/ a ni-cad rod. If you don't have the tools to do it(lathe is a must), bring it to a machine shop and have them do it.

Where are you at? I used to work at a gear shop in Freedom, Wisconsin that does tons of those repairs for local farmers. Did a few for myself too. It ussually costs about 1 hr of labor and the cost of the sprocket, and the farmer is well on his way. Heckuva lot cheaper than the sprocket the other guy found new.

If it's a rugular bore, all ya gotta know is the tooth count, size chain, size of bore, size of key (if it has one) set screws,

In your case, the sprocket is a 60A49 and whatever kind of hub it has.

You can give them a call and have them UPS it to you if you're in another state.

Madden Machine (920) 788-4245 if your interested. Best part is, it's made in the heart of the USofA.

Donovan from Wisconsin

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Robert M Hensell

11-20-2006 07:20:32




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 Re: Sprocket for IH 990 Mower Conditioner in reply to Don-Wi, 11-19-2006 19:41:50  
I am in Texas. I am getting prices on sprockets that could be adapted to the hub on my sprocket. The hub on this sprocket has bearing races and is sized for tapered Timken bearings, like a car or trailer. I guess that is why it is so expensive. I have been to a couple of machine shops and gotten extimates and that is probably the way I will go. It will be $150 or so. Thanks to all of you guys for the advice.

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MikeinKy

11-17-2006 18:01:27




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 Re: Sprocket for IH 990 Mower Conditioner in reply to Robert Hensell, 11-17-2006 13:16:15  
I'll sell you a complete operating 990 mower/conditioner for less that the price of that gear.



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Bob

11-17-2006 15:41:07




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 Re: Sprocket for IH 990 Mower Conditioner in reply to Robert Hensell, 11-17-2006 13:16:15  
For THAT price, I would machine down the old sprocket, and machine out the center of a steel "weld- a-sprocket", and drill about six holes, 1/2 and 1/2, on the circle where they meet, and bolt them together. The steel sproket would probably be about $20 or #$30.



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Myron KY

11-17-2006 13:59:28




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 Re: Sprocket for IH 990 Mower Conditioner in reply to Robert Hensell, 11-17-2006 13:16:15  
Looks like new ones are still available from Messicks. Part number 540577R1. $468.94

Hope this helps
Myron KY



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