Continous power dc motor

[anonymouse]

Are you able to run the motor under the given load as a test?
If so then measure the amps.

The load will determine the amps.

My problem is Dave that by the nature of a dc motor the motor current reduces to zero as the rpm increases due to the back emf, so the current is non linear (motor will be at various pwm from 0 to 100). Thus I am not sure how manufacturers come to derive the continuous power. I understand that peak power can be upto 5x continuous power depending on manufacturer, and I cannot work back to the motor constant (to see if their are equivalents) as I am missing peak torque data.
Thanks for your reply