1) Connect the field coil and the armature to a power supply you intend to use with this motor.
2) Use a tach to measure the motor no-load RPM.
3) Calculate the Kv by dividing the supply voltage by the measured RPM and multiply the answer by 1,000. That will be the motor's Kv (volts per 1000 RPM)
4) Multiply Kv by 1.351 to get the motor's Kt. Kt is in-oz per Amp.
5) Calculate the max continuous torque by dividing the motor's rated voltage by its armature resistance. Multiply this by 0.2 and multiply the result by Kt from (4). That will be the maximum continuous torque you can use.
hope that helps.
Mariss |