I bought a 2000 lb winch a while ago thinking it might work for a reverse motor. Nitro had a similar setup that wouldn't push his 1200 lb trike up his driveway. I was confused, so I did research on the specs for these winches. Now I'm more confused. Here are some of the specs on the winch:
(Specs found Here)
2000 lbs max load
9800 lbs rolling load on a 6 degree slope
pulls 1500 lbs at 6 feet per minute, drawing 90 amps
all based on first wire layer, i.e. hub diameter of 1.25 inches
The specs look like they should handle the load, even up a slope. The catch is that it's based on the first wire layer, which is a small diameter. This achieves maximum power, but minimum speed. Six feet per minute is not going to get me out of a parking space fast enough. That 1500 lbs, though, is not rolling load speed, and it will go considerably faster, maybe 9 feet per minute.
So, what would the speed and power be if I used the outside diameter of the spool, approx. 3.25 inches?
pi x 1.25" = 3.925" circumference
72 / 3.925 = 18.34 spool revolutions per minute
pi x 3.25" = 10.2" circumference
10.2" x 18.34 = 187 inches (15.6 feet) per minute minimum
18.34 / 3.925 = 30% of first wire layer pulling capacity
.3 x 2000 = 600 lbs max load
The rolling load would be a bit more, probably enough to where it would probably work on a level surface, but not up a slope.
Plus, it would still take a couple of minutes to back out of a parking space. Unacceptable.
Oh well. I will find another use for the winch.