Coefficient of Friction in a V-Belt System -- Torque Changes?

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SUMMARY

Increasing the coefficient of friction (CoF) in a V-belt pulley system does not necessarily lead to an increase in torque. The tension formula for V-belts, represented as F1/F2=e^((μθ)/sinα), indicates that while a higher CoF (μ) increases the tension ratio (F1/F2), torque is also dependent on the tight side belt tension. A calculation error may be the reason for the misconception that higher CoF directly correlates with increased torque.

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  • Understanding of V-belt systems and their mechanics
  • Familiarity with the tension formula for V-belts
  • Knowledge of torque and its relationship with tension
  • Basic grasp of coefficients of friction in mechanical systems
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Mechanical engineers, students studying mechanical systems, and professionals working with V-belt applications will benefit from this discussion.

PizzaWizza
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Can anyone explain why, if you increase the CoF of the belt on a V-Belt pulley system, you'd get less torque?

I've increased my CoF in the V-Belt tension formula. You'd have thought that the torque would increase with a belt with a greater CoF?
 
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This equation? -

Belt tension for V belts: F1/F2=e^((μθ)/sinα))

Your intuition is right, as mu increases then F1/F2 increases so more torque for a given tight side belt tension - I suspect you've made a calculation error.
 
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Thanks again Billy, I'll double check calcs
 

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