Calculating PSI for Pressing Cups into Agricultural Equipment Hubs

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Calculating the PSI required to press cups into agricultural equipment hubs involves understanding the interference fit and dimensions of both components. The hub has a diameter of 3.2675 inches, while the cup measures 3.2685 inches, resulting in a 0.001-inch interference fit. The pressing depth is 1.5 inches, and the hub's surface finish is 125, though the cup's finish remains unspecified. To determine the necessary PSI, one can utilize online calculators designed for such calculations, like the one referenced in the discussion. Accurate PSI calculations are essential for ensuring proper assembly and function of the equipment.
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Where I work we machine hubs for agricultural equipment. Currently we are having an issue pressing the cups\races into the hubs. The cups have a.001 inference fit with the bore of the hub. The hub dia is 3.2675" and the cup has a 3.2685" dia. the surface finish of the hub is 125 and I am not sure what the surface finish is for the cup. Also we are pressing the cup to a depth of 1.5". The question that has been asked of me is to calculate the amount of psi it takes to press the cups into the hub. Any help would be appreciated. Thanks
 
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