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Eaton and Sunstrand hydro pump question


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#1 1oldbuzz OFFLINE  

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Posted March 06, 2017 - 06:01 AM

Wanting to know if the input shaft bearing on these pumps will take

side load

I am wanting to run a belt drive with engine mounted

directly over the rear end



#2 dropped82 ONLINE  

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Posted March 06, 2017 - 06:26 AM

There are applications out there that use these pumps with a belt drive. The simplicity and Allis Chalmers tractors are an example. They use a Sundstrand pump belt driven from the bgb. I'm not sure on bearing differences.

Eric

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Edited by dropped82, March 06, 2017 - 06:27 AM.

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#3 GWest OFFLINE  

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Posted March 06, 2017 - 06:46 AM

Most of the Wheel Horses are belt driven and the GT-14's used a double pulley on the hydro pump to drive the rear tiller.

The D-Series Auto models used a shaft driven pump.

 

Garry


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#4 1oldbuzz OFFLINE  

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Posted March 06, 2017 - 07:14 AM

Ok here's my idea/plan

I am thinking of building an articulated machine

I want to mount an engine directly over the rear end /transaxle

and drive the pump via belt or chain

Mini wheel loader so to speak



#5 KennyP ONLINE  

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Posted March 06, 2017 - 07:19 AM

I know you can tell on the Eaton's if they have a bushing or a bearing in the charge pump. Not sure about the Sundstrand. I would think a bearing would be better for this. I'll be lurking as I have a Sundstrand I would like to change how it's driven. A direct drive shaft would be in the way of things.


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#6 1oldbuzz OFFLINE  

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Posted March 06, 2017 - 07:34 AM

My thoughts are to keep all the weight over the rear axle

also didn't want to over complicate with a multi joint drive shaft

 

something similar to this

this machine is way over complicated using

multipal pumps and a vw tranny/transaxle

and needs a lot of refabing

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#7 chieffan ONLINE  

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Posted March 06, 2017 - 08:06 AM

Don't know why if wouldn't work.  I would go with a roller chain as you have a lot less side pressure with a chain drive.  As Kenny siad, make sure you have a bearing and not a bushing.


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#8 glenford7502 OFFLINE  

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Posted March 17, 2017 - 05:26 PM

If you are concerned on side loading the shaft build a carrier bearing on the other side of the pulley to support some of the load.




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