This NEMA-17 motor has an integrated Planetary gearbox with a 991044/2057 :1 ratio.It comes with the rear shaft exposed, so you can mount an encoder or shaft coupler.
When connected to a 1067 - PhidgetStepper Bipolar HC, the 3329 has a maximum speed of 34 RPM. At the output of the gearbox, the step angle is approximately 0.018°. When using the step angle in calculations, you should derive the exact step angle by dividing 1.8° by the gearbox reduction ratio.
At 1.7 Amps, this gearbox stepper can produce a maximum torque of 250 kg-cm. However, the gearbox is only rated for 48 kg-cm of continuous torque, and 100 kg-cm for brief overloads. Loading this gearbox stepper beyond the torque rating of the gearbox will shorten its useful life.
The 3329 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.
The rear shaft of this motor can be equipped with the HKT22 Optical Encoder for applications where you need to keep track of the exact position, velocity, or acceleration of the motor.
|Motor Type||Bipolar Stepper|
|Manufacturer Part Number||42STH38-1684B / 36JXS60K99.51|
|Step Accuracy||± 5 %|
|Holding Torque||48 kg·cm|
|Rated Torque||48 kg·cm|
|Maximum Speed (w/1067 Motor Controller)||34 RPM|
|Acceleration at Max Speed
(w/1067 Motor Controller)
|1.2E+06 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||3.9 mm|
|Mounting Plate Size||NEMA - 17|
|Number of Leads||4|
|Wire Length||300 mm|
|Gear Ratio||99 1044⁄2057 : 1|
|Backlash Error||1 1⁄2°|
|Maximum Strength of Gears||48 kg·cm|
|Shaft Maximum Axial Load||49.1 N|
|Shaft Maximum Radial Load||98.1 N|
|Part. No. :||3329|
|Shaft Diam. mm :||8|
Questions on 3329 - 42STH38 NEMA-17 Bipolar Stepper with 99.51:1 Gearbox
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Excl. Tax:€103.90Incl. Tax:€126.76