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Need Help with HP requirments on a 42" mower

BUDSVTX's Avatar

Join Date: Apr 2013
Posts: 12

04-17-13, 07:35 AM   #1  
Need Help with HP requirments on a 42" mower

I am building a tow behind mower for my Power King, Gravely tractor. It is a 42" cut mower with swing blades like an IH Cub tractor and is belt driven. Mower will be used for grass and brush cutting. The spindle is a new old stock Woods spindle and requires blade tip speed of 13900 FPM. I am thinking 12-18 HP should work. I am trying to figure out how much HP will be needed to drive this mower before I buy an engine with out enough power to power the mower.


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chandler's Avatar
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Join Date: Dec 2005
Posts: 39,968

04-26-13, 02:57 AM   #2  
I should think the horsepower rating your suggest would be in a good range. I would, however, look for a work horse type engine, such as Kohler rather than B&S, or other more common engines. I just think you would get better service.

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