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Help determin aluminum roll deflection

Help determin aluminum roll deflection

Help determin aluminum roll deflection

(OP)
I am designing a steel box that I need to install rollers in so rolls of fabric can roll freely as they are being unwound.  I need help to determin if the load will be too much for rollers and how much deflection I might see.
2" OD 1/4" wall extruded tubes that are @ 83" long.  I will use keyless bushings on the ends to hold it centered on an 89" long @ 1" dia steel shafting.
The most narrow roll of fabric is 30" wide and 400 lbs.  The heaviest roll is @1,100 lbs and is 60" wide.  The intention is to have rolls on 4-1/2" centers. Flange bearings will support the shafting at each end.

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