- Location
- Belvidere
Was wonder what a nice rope for using a pulley with half inch rope I'm looking for
Need a good rope for pulley
- Thread starter Mightylimbwalker
- Start date
*useless info*
Participating member
- Location
- usa
i think Arborist Ropes that we might kinda take for granted, are super ropes for many purposes. Would think standards as cheaper Arbo-Plex tp TrueBlue etc. that aren't too stiff would ride 2" wide pulley or more.
In 2" for 1/2" of these lines would handicap w/guesstimation of 50% of SWL on that arc, and then that covers also standard preferred knots in system as well. This was the standard thumb-rule ratio at the time with these ropes. Later ropes , especially of newer materials, stiffer ropes etc. need even softer arc to maintain same numbers
.
Wider pulley could maintain more SWL, and be pickier on knot choice that maintain that.
.
Counter-intuitively , when double rope on load via pulley on load,
the strength in support system of load increases as statically expected.
BUT in dynamics of movement, the elastic dampening response to impacts drops
>>just like using a stronger rope of same manufacture and materials
The elastic response is a percentage of the total tensile intruded on by the load force
>>so ALWAYS , the elastic response and strength are as reciprocals to same loading in this fashion.
.
Any specific target usage?
In 2" for 1/2" of these lines would handicap w/guesstimation of 50% of SWL on that arc, and then that covers also standard preferred knots in system as well. This was the standard thumb-rule ratio at the time with these ropes. Later ropes , especially of newer materials, stiffer ropes etc. need even softer arc to maintain same numbers
.
Wider pulley could maintain more SWL, and be pickier on knot choice that maintain that.
.
Counter-intuitively , when double rope on load via pulley on load,
the strength in support system of load increases as statically expected.
BUT in dynamics of movement, the elastic dampening response to impacts drops
>>just like using a stronger rope of same manufacture and materials
The elastic response is a percentage of the total tensile intruded on by the load force
>>so ALWAYS , the elastic response and strength are as reciprocals to same loading in this fashion.
.
Any specific target usage?
- Location
- Ottawa, Canada
Arborist rope are best in my opinion
