Calculating Required Torque for Crane Shaft with 1000 lb Load

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To calculate the required torque for a crane moving a 1000 lb load with a 10 ft arm, one must consider both the load and the friction from the bushings and thrust bearing. The torque can be determined using the formula Torque = Force x Distance, where the force is the weight of the load and the distance is the length of the arm. It's important to account for the frictional forces that will increase the total torque needed to initiate movement. The discussion emphasizes that while moving an object requires overcoming friction, the specifics of speed and acceleration are not addressed. Understanding these factors is crucial for accurate torque calculations in crane operations.
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I have a crane that is moving a mass of 1000 lbs. the arm is 10 ft. long and the shaft where the rotation occurs consists of two bushings with which to rotate the shaft, and a thrust bearing to help bear the load. I need to find out how much torque is required to turn the shaft of the crane. I must take into account the friction in the bearings
 
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You've made a statement. Now what's your question?

I can say that just "to move" an object, no matter how massive, without any specification of how quickly requires only the force be non-zero. Hence including friction, the requirement "to move" will only require you surpass the friction.

(Archimedes said "Give me a lever and I will move the Earth!", I say "We don' need no stinkin' leaver!")
 

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