Understanding Torque & RPM: What You Need to Know

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SUMMARY

The discussion clarifies the critical relationship between torque and RPM in motors, emphasizing that torque applies the necessary rotational force for tasks such as accelerating vehicles. It establishes that power is the product of torque and RPM, highlighting the role of gearboxes in converting power between these two metrics. Additionally, it notes that while increasing RPM can reduce torque, there are inherent limits due to friction that must be considered.

PREREQUISITES
  • Understanding of basic motor mechanics
  • Familiarity with power calculations (Power = Torque x RPM)
  • Knowledge of gearbox functions and types
  • Awareness of frictional forces in mechanical systems
NEXT STEPS
  • Research the impact of gear ratios on torque and RPM
  • Learn about different types of gearboxes and their applications
  • Explore the effects of friction on motor performance
  • Investigate torque curves for various motor types
USEFUL FOR

Engineers, automotive enthusiasts, and anyone involved in motor design or performance optimization will benefit from this discussion.

Sai Kiran Aka
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What is the use of torque of a motor? Is it not the RPM that is needed? And up to what percentage the torque could be reduced to increase the RPM?
 
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Sai Kiran Aka said:
What is the use of torque of a motor? Is it not the RPM that is needed?
Torque is what applies rotational force to things. Like tightening a large bolt or rapidly accelerating a car requires a lot of torque.
And up to what percentage the torque could be reduced to increase the RPM?
The relationship depends on the motor.
 
Torque multiplied by RPM is Power.
A gearbox can transform power between torque and RPM.
There are limits to high RPM with low torque due to friction.
 

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