I have this kind of motor but I can not find any electrical specifications about it. All I know is that is a 36V,250W BLDC motor.

How can I determine the number of poles, the coil resistance/inductance in order to know the proper frequency to drive the motor ?

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  • \$\begingroup\$ By inspection and measurement. If that is beyond you, you have discovered the "no datasheet, no sale" rule. \$\endgroup\$ – Brian Drummond Feb 22 at 20:07

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