This NEMA-17 motor has an integrated Planetary gearbox with a 26103/121 :1 ratio. It comes with the rear shaft exposed, so you can mount an encoder or shaft coupler.
At 1.7 Amps (maximum current), this stepper motor can produce a maximum torque of 77 kg-cm. However, the gearbox is only rated for 30 kg-cm of continuous torque, and 80 kg-cm for brief overloads. Loading this gearbox stepper beyond the torque rating of the gearbox will shorten its useful life.
When connected to a 1067 - PhidgetStepper Bipolar HC, the 3327 has a maximum speed of approximately 23 RPM at no load. At the output of the gearbox, the step angle is a little under 0.07°. When using the step angle in calculations, you should derive the exact step angle by dividing 1.8° by the gearbox reduction ratio.
The 3327 stepper motor connects to a bipolar motor controller such as the 1067 - PhidgetStepper Bipolar HC.
The following table shows how to connect the motor wires to the board connectors to produce a clockwise rotation in the stepper motor when increasing position. To wire for counter-clockwise rotation when increasing position, reverse the red and blue wires.
Note: Make sure to unplug the power cord from the motor controller before switching wires around.
Connecting the motor directly to a power supply will destroy the motor and void the warranty. If you want to check your motor make sure it is connected to a constant current / chopper drive controller.
- High Torque
- 0.067° Step Angle
- Motor can produce 30 kg-cm holding torque @ 1.7A
- NEMA-17 Bipolar 4-wire
- Rear shaft exposed for compatibility with encoders
|Motor Type||Bipolar Stepper|
|Manufacturer Part Number||42STH38-1684B / 36JXS60K26|
|Step Accuracy||5 %|
|Holding Torque||30 kg·cm|
|Rated Torque||30 kg·cm|
|Maximum Speed (w/1063 Motor Controller)||21 RPM|
|Maximum Speed (w/1067 Motor Controller)||174 RPM|
|Acceleration at Max Speed
(w/1067 Motor Controller)
|600000 1/16 steps/sec²|
|Recommended Voltage||12 V DC|
|Rated Current||1.7 A|
|Coil Resistance||1.7 Ω|
|Shaft Diameter||8 mm|
|Rear Shaft Diameter||3.8 mm|
|Mounting Plate Size||NEMA - 17|
|Number of Leads||4|
|Wire Length||300 mm|
|Gear Ratio||26 103⁄121 : 1|
|Backlash Error||1 1⁄2°|
|Maximum Strength of Gears||30 kg·cm|
|Shaft Maximum Axial Load||49.1 N|
|Shaft Maximum Radial Load||98.1 N|
|Part. No. :||3327|
|Diam. Asse mm :||8|
Questions on 3327 - 42STH38 NEMA-17 Bipolar Stepper with 26.85:1 Gearbox
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