Screw Jack Mechanical Advantage
MA, velocity ratio, and efficiency for a screw jack.
Result
Ideal MA
904.78
Efficiency
4.8%
Actual MA
43.5
关于此工具
Enter lead, effort arm, and friction angle to get ideal MA, actual MA, ideal vs. real efficiency, and the holding load. Covers the recurring r/AskEngineers 'why is my jack only rated at 3 tons' confusion.
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