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Re: torque??
Re: torque?? -- ghegdahl	Post Reply	Top of thread	Forum

Posted by: mikebull ® 07/06/2004, 07:41:25 Author Profile Mail author Edit

The formulae is :- Torque (lb.ft) = allowable stress (psi) x Pi x D^3/16 /12 So for a 1.5" steel bar with a working allowable of 8000 psi you can safely transmit 442 lb.ft. If you have a step or other stress concentration in the shaft then the torque will have to be less by this factor (between 1 and 3 ?) Every mechanics textbook will give you the above info.

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Re: torque??
Re: Re: torque?? -- mikebull	Post Reply	Top of thread	Forum

Posted by: ghegdahl ® 07/06/2004, 10:50:36 Author Profile Mail author Edit

thank you

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