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OVERHAULING LOAD TORQUE Applications with a descending load, such as crane hoists, elevators, etc., require a brake with sufficient torque both to stop the load and to hold it at rest. The total system inertia reflected to the brake shaft speed should be calculated using the previous formulas. Next, the average dynamic torque should be calculated with the previous formula:  Next, the overhauling torque reflected to the brake shaft can be determined by the following formula: 
The total dynamic torque required for an overhauling load is the sum of Td and T0, as follows:
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