.9 Stepper specs.

Can you post the specs of the steppers, namely the newtons required to work the PSI and Theta arms. Somewhere I thought I read they only required 7. Found these on Ebay.

±5% (full step, no load)
Resistance Accuracy ±10%
Inductance Accuracy ±20%
Temperature Rise 80°C Max.(rated current,2 phase on)
Ambient Temperature -20°C~+50°C
Insulation Resistance 100MΩMin. ,500VDC
Dielectric Strength 500VAC for one minute
Shaft Radial Play 0.02Max. (450 g-load)
Shaft Axial Play 0.08Max. (450 g-load)
Max. radial force 28N (20mm from the flange)
Max. axial force 10N
Rotation CW( See from Front Flange)

Thanks in Advance