Shear pin for winch , i wonder !!!

[stumps]

I believe the load capacity reduces with additional wraps not because the winch has to pull the line in faster but because the diameter is larger and therefore the ratio between the input shaft rotation to winch cable rotation changes (like gear ratio).

More layers of line, larger diameter.
Larger diameter, larger circumference.
Larger circumference, more line that has to move per revolution of the winch.
More line that has to move per revolution of the winch, the faster the line has to travel for a given PTO speed...

They are all mathematically related (circumference = 3.14 x diameter), so any of the above is as good an explanation as the other.

-Chuck

 

[blisters13]

Absolutely I agree; my point is larger diameter, less torque available therefore the pulling capacity reduces the more wraps you have.

 

[Squirt-Truck]

Not getting into this on shear pins, the info here is good and should be heeded.

But, the comment in post #1, yes the 10k OEM winch will drag an empty deuce with all 10 locked. DO not believe the sales ads that a 3/8" lined little commercial electric winch will do the same thing.....we got paid way to much at the lab debunking that line.