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Unread 09-05-2014, 17:31
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Re: Turns out Helical Beam Couplers aren't meant to handle that much stress . . .

Generally in industrial applications the lead screw will be turned down at each end so that it can sit on a thrust bearing package. In my plant, we then drive them with a timing belt.

An easy way to do that is to get a shaft collar that fits over the threads and pin it in place. Then you don't have to machine down the end.

http://img.directindustry.com/images...84-4327425.jpg

http://gallery.nibou.com/albums/LINE...w_Supports.jpg

Your system is putting a huge amount of axial load into the motor shaft directly. They aren't made to support that type of load.
 


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