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Farmall & IHC Tractors Discussion Forum
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correct belt pully

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1941Mowner

02-06-2006 17:35:10




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I have a 41 M farmall. What would be the correct belt pully for it, steel or what ever material the more common ones are made out of?




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Tedd

02-07-2006 04:31:26




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 Re: correct belt pully in reply to 1941Mowner, 02-06-2006 17:35:10  
Most of the important facts have already been covered on the pully ? but I have to add my 2 cents. We have a couple showey(sp) type of tractors that the all-steel pully painted red looks great on. I still grind my feed with a belt driven hammer-mill and I have never had good luck with the steel pully. Slippage is common and no tuninng of the belt tension will stop wobble or belt resonance. The fiber/paper pully requires less tennsion and the belt seems to always run true. I think you are trying to determine appropriateness by year built by I thought this may be good in case you actually wanted to use it.

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Hugh MacKay

02-07-2006 02:56:03




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 Re: correct belt pully in reply to 1941Mowner, 02-06-2006 17:35:10  
Mowner: Rusty is correct with one little exception, based on my experience, and this may well have been different in 1941.

My dad had a 1942 W4 he bought new in 42, it had a fiber pulley. He traded the W4 for an H in 51. The H was to have all the same equipment options the W4 had plus hydraulics. Upon Delivery the H had a steel pulley, and dad objected. The dealer said the fiber pulley was optional. Dad said fine if the fiber pulley is optional I will be keeping my option, and you are going to change them. The dealer did as dad requested.

The fiber pulley gave better traction on the belt, and farmers that were doing heavy belt work wanted that extra traction.

I also have a gut feeling that fiber pulley may have been standard equipment in the early 40s. I say that as in the mid 50s most new tractors you saw had steel pulleys, while the older tractors generally had fiber pulleys.

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Quebec Red

02-07-2006 06:58:12




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 Re: correct belt pully in reply to Hugh MacKay, 02-07-2006 02:56:03  
Similar situation here. In 1944 a new W-6 came with the fiber pulley. When tha SW-6TA came to replace the W-6, it had the steel pulley. My Father kept the fiber pulley. The steel one was put on a new old stock SW-6 that was sold locally, and that tractor is now in the hands of a collector, still with the steel,pulley. QR



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KS Farms

02-06-2006 20:27:23




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 Re: correct belt pully in reply to 1941Mowner, 02-06-2006 17:35:10  
The Farmall M came with an 11 inch diameter pulley with a 7.5 inch face. It ran at 898 RPM and provided a belt speed of 2587 FPM.

The pulley for an H has a 9.75 by 7.5 pulley that ran at 1019 RPM to provide a belt speed of 2601 FPM.



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KS Farms

02-06-2006 20:35:35




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 Re: correct belt pully in reply to KS Farms, 02-06-2006 20:27:23  
I forgot to mention that the factory pulley is what they called a Rockwood pulley, that was ment to reduce slippage.



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RustyFarmall

02-06-2006 18:16:38




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 Re: correct belt pully in reply to 1941Mowner, 02-06-2006 17:35:10  
Actually there is no such thing as a "correct" belt pulley. The pulley to be used was determined by the machine which was being driven by the belt. The paper, or fiber, pulley is the most common, but I really don't think that anyone would consider a steel pulley to be "incorrect", as in some applications the steel pulley would have been "correct".



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41Mowner

02-06-2006 18:41:24




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 Re: correct belt pully in reply to RustyFarmall, 02-06-2006 18:16:38  
What applications would require a steel pulley over the fiber pulley and vise versa? Thanks in advance.



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