Soyo 12V 125oz-in Unipolar Stepper Motor RPM?

Does anyone know the RPM and/or torque curves for the Soyo 12V 0.68A 125oz-in Unipolar Stepper Motor, part #SY57ST76-0686B?

robotshop.com/productinfo.aspx?pc=RB-Soy-14&lang=en-US

The datasheets left this out and I didn’t find it using the search…

Thanks for any help in advance!

All the information at our disposal can be found on cnsoyo.com There are a few curves there, but perhaps not exactly what you are looking for.