Description:
This NEMA-17 motor has an integrated Planetary gearbox with a 5²/₁₁ :1 ratio. It generates 16.2 Kg-cm of torque at 1.68 Amps.

When connected to a 1063 - PhidgetStepper Bipolar 1-Motor, the 3317 has a maximum speed of a little over 118 RPM. Connected to the PhidgetStepper HC (1067) the maximum speed is 904 RPM.  At the output of the gearbox, the step angle is a little under 0.35°. When using the step angle in calculations, you should derive the exact step angle by dividing 1.8° by the gearbox reduction ratio.

Specifications:

• Motor Type: Bipolar Stepper (4-wire)
• Step Angle: 0.35°
• Step Accuracy: 5 %
• Holding Torque: 18 kg·cm
• Rated Torque: 16.2 kg·cm
• Maximum Speed (w/1063 Motor Controller): 118 RPM
• Maximum Speed (w/1067 Motor Controller): 904 RPM
• Acceleration at Max Speed(w/1067 Motor Controller): 410000 1/16 steps/sec²
• Rear shaft is exposed for easy mounting of encoder of shaft coupler
• Recommended Voltage: 12 V DC
• Rated Current: 1.7 A
• Coil Resistance: 1.7 Ω
• Shaft Diameter: 8 mm
• Mounting Plate Size: NEMA - 17
• Weight: 460 g
• Version: 3325_0

Resources:
More information to be found in the Stepper User Guide