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  • Users: 1athoti
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  1. 1athoti

    Double Bullwheel Shaft Loading

    Hi, I'm working on a bullwheel capstan system for underground cable pulling. Can someone give input on whether I'm approaching the loads on the shafts correctly? From capstan calcs (mainly US Navy wire rope handbook) I'm aiming for 100,000 lbf on final wrap and should be able to achieve it...
  2. 1athoti

    Bearing Capacity (Spherical Roller)

    Hi! I have a question regarding selecting bearings based on advertised load capacity. I have a pulley with a resultant load of 142,000 lbs (A wire rope around the pulley with 100k tension. The wire rope does not wrap around 180deg but about 90deg, so vertical up and horizontal to the bull...
  3. 1athoti

    Heat Exchanger Efficiency

    Hi, I would appreciate some input or direction on some Heat Exchanger (HE) variables. I realize there are a lot of variables in this system, but if we'd at least begin with a few. I'm dealing with a pipe heat exchanger immersed in a tank (about 600Gal of water) with a circulating pump. The HE is...
  4. 1athoti

    Overturning force of stopping a moving machine

    Well, it's my first post though I have been reading eng-tips for a while and I appreciate the site and contributors so much! [smile] I have a machine which rides on 2 tracks, 2 track rollers per side, and is driven by cables which pull it back and forth. The sketch would be a side view of the...

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