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Open mind Wrote:
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> I was talking about the friction of the rope on
> the fixed roller. All that weight when lifted
> more vertically, is now focused on the tiny
> surface area of that point where the friction is
> heavily compounded.
>
> just in case your mention of friction included
> what i was saying
Not really.
Most of the friction simply never comes into existence at all. Friction is dependent mostly on the weight and determined by the bearing surfaces. There is a great deal of weight on the bearing surfaces on any sort of pulley under heavy load but these surfaces are designed to virtually eliminate friction. Oiled copper on copper would have no significant friction so the bearing surfaces would create little heat and impart little drag to the lift.
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> I was talking about the friction of the rope on
> the fixed roller. All that weight when lifted
> more vertically, is now focused on the tiny
> surface area of that point where the friction is
> heavily compounded.
>
> just in case your mention of friction included
> what i was saying
Not really.
Most of the friction simply never comes into existence at all. Friction is dependent mostly on the weight and determined by the bearing surfaces. There is a great deal of weight on the bearing surfaces on any sort of pulley under heavy load but these surfaces are designed to virtually eliminate friction. Oiled copper on copper would have no significant friction so the bearing surfaces would create little heat and impart little drag to the lift.
Man fears the pyramid, time fears man.
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