Hi I am trying to work out the torque required to rotate an object from 0 to 1RPM in 1 second (1 second accelerate to 1RMP) , its working in time laps so very small movement is required.(adsbygoogle = window.adsbygoogle || []).push({});

The diameter of the gear is 30mm and the diameter of the shaft is 10mm, the object on top weights 20kg it's sitting on a low friction bearing.

So far I have

Torque = F x r

r = radius of the cylinder = 0.005

Force = mass x acceleration

where mass = 20kg

accel = velocity/time

velocity = r x ω (rotational speed)

where ω at 1RPM = 6.28 rad/sec

So v = 0.005 x 6.28 = 0.0314 m/s

Therefore accel = 0.0314/t

Therefore T = 12 x 0.031/t x 0.005

= 0.186/t Nm

I know there is alot more to this but I am very new to this and out of my comfort zone in terms of engineering knowledge (I'm a product designer) , I've mainly been following pre worked examples I've found online. Would really appreciate some help and guidance.

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# Required Torque on Motor

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