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EspElement
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I have an application where I have a shaft being supported from end to end with bearings (self aligning) and a motor hard mounted driving it. The shaft starts at 1 3/4" RD to accept motor and bearings. Then is welded to a 2" x 1/4" square tube for the output. It allows for a wooden roller to be slid onto the shaft and then the machine wraps belt around this roller. Roller is made of wood chips glued together and is 5" in DIA with a 2 1/4" square down the center to accept 2" shaft. My question is, when I put a belt as heavy as 1000 lb over the span of 60" (bearing spacing is 83") what will be the result? Over the remaining 23" it will have the 1 3/4" RD supporting the load on each side. I can post pictures/drawings of this if required.
Since my motor is hard mounted I am accounting one side as fixed and other floating because of the self aligning bearings. Would I be able to consider this a fixed fixed application? Over the 60" span I believe my stress will be less because of the roller and belt wrapping will help keep area rigid. The at the points where I change from 2" square to 1 3/4" is where I am concerned about stress and deflection. I believe they would have the most. Would I be correct?
How would I go about insuring I will have no issues with this design?
Thanks guys.
Josh
Since my motor is hard mounted I am accounting one side as fixed and other floating because of the self aligning bearings. Would I be able to consider this a fixed fixed application? Over the 60" span I believe my stress will be less because of the roller and belt wrapping will help keep area rigid. The at the points where I change from 2" square to 1 3/4" is where I am concerned about stress and deflection. I believe they would have the most. Would I be correct?
How would I go about insuring I will have no issues with this design?
Thanks guys.
Josh