What does it means? The parameters of stepper motor datasheet

[testpilot]

Hello. In advance apologize about my English.

I have stepper motor(SM) data sheet but I can't understand some parameters.
Googling wasn't helpful, and my dictionaries too.

What does it means?
Inductance accuracy 10%
resistance accuracy 20%

Thank you in advance.

[port_huon]

It means that the actual values for inductance and resistance may vary by 10% and 20% respectively from the quoted values.
Manufacturing tolerances.

[79TigerPilot]

The windings on the stepper motor have both resistance (measured in ohms) and inductance (measured in micor henrys). When the motor is buit they have specific values based on the design of the motor. The accuracy is just that, how close to the design nominal value will a specific motor be.

If the resistance design value is 10 ohms with a 10% accuracy then any motor with a resistance of 9 ohms to 11 ohms would be within speck.

Craig