motor torque - essentials 3

[cervantes]

hi all,

this is really a fundamental question
i need someone who can explain it in "mechanics for dummies" way

imagine I am not a technician, I completely do not know anything about mechanics....

on motor datasheets torque is specified - is it a torque directly on the motor axis?... is it increasing with pulley diameter if pulley is attached to the motor?...

see attachment:
if the motor has torque=1Nm and the load on the belt is 200N is it powerful enoough to move it? (does pulley size matter here... should I multiply torque x radius of pulley, then I will have bigger torque)?

thanks for understanding

 

[SomptingGuy]

A pet peeve of mine is the usage of "HP" when "power" is meant.

- Steve

 

[tbuelna]

The OP asked about what the quoted torque values for electric motors imply. In light of the entertaining discussion of measuring power in terms of "horse vapors/steam", I'd like to propose that the stall torque of an electric motor should henceforth be described in units based on initials of the French term for "stubborn mule", or tdm (tête de mule).

Horse vapors and stubborn mules seem like perfectly logical units of measure.