You're also making an apples and oranges comparison. If you double the size of your motor pulley, then you're also doubling the rate that you're moving grain. So you have doubled the work that is being done. Assume that your motor is able to start the auger and get up to operating speed with the larger pulley. It is now producing twice the torque and twice the horsepower as before. And it's drawing twice the power from your electrical service. Of course, the motor will eventually burn out under these conditions, but it is the nature of motors to produce as much power as is required, up to the point that they stall out.
If I drive up a grade at 45 mph, it doesn't matter whether I'm in first, second, or third gear. The horsepower produced by my motor is the same. In the lower gears, the engine produces less torque but more rpms than it does in the higher gears. HP equals torque times engine speed.
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Today's Featured Article - Harvestin Hay: The Early Years (Part 2) - by Pat Browning. The summer of 1950 was the start of a new era in farming for our family. I was thirteen, and Kathy (my oldest sister) was seven. At this age, I believed tractor farming was the only way, hot stuff -- and given a chance I probably would have used the tractor, Dad's first, a 1936 Model "A" John Deere, to go bring in the cows! And I think Dad was ready for some automation too. And so it was that we acquired a good, used J. I. Case, wire tie hay baler. In addition to a person to drive th
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