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• # vehicle torque calculation

Discussion in 'Industrial design' started by anoopsg2, Jul 24, 2015.

1. ### anoopsg2New Member

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Jul 2015
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hi,
i have 8000 lb machine it has 4 wheels (just like car), i want it to move on 2 ft/sec speed on cast iron wheels with steel track at flat surface. radius of every wheel in 5 inch. what will be the torque required to move this machine?? and what will be the torque on each wheel?? i want to put two motors on two drive wheels... and which type of motor is suitable in 3 phase motors

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3. ### mymachineinfoMember

Joined:
May 2015
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Torque = Thrust Force * Radius of wheel
Thrust Force = Load (8000 Lb ) * gravity * coefficient friction of wheel

4. ### CPPMableWell-Known Member

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Nov 2012
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Just to be clear as your question sounds like you are asking what torque would get you 2ft/s. Torque is a force not equated to speed. You will need to calculate what RPM you need to get 2ft/s based on your tire radius. Assuming you can handle this calc? A motor manufacture will then provide a RPM vs Torque curve and make sure this is in the range you need.

To go with mymachineinfo comment. Make sure you understand and consider the difference between static vs kinetic friction. So your vehicle can start from a stop position do not want to have to give it a swift kick to get it going.

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