3327_0 - 42STH38 NEMA-17 Bipolar Stepper with 26.85:1 Gearbox

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Quick Overview

This bipolar stepper with gearbox and rear shaft has a 0.067° step angle and 30 kg·cm of torque at low speeds.

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  • 3327_0 - 42STH38 NEMA-17 Bipolar Stepper with 26.85:1 Gearbox

Details

Product Features


This bipolar stepper with gearbox and rear shaft has a 0.067° step angle and 30 kg·cm of torque at low speeds.
Product Description

This NEMA-17 motor has an integrated Planetary gearbox with a 26 103/121 :1 ratio. It comes with the rear shaft exposed, so you can mount an encoder or shaft coupler.

At 1.7 Amps, 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 174 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.



Motor Controller and Connection

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.


Wire Color Black Green Red Blue
Board Connector A B C D

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 Encoderfor applications where you need to keep track of the exact position, velocity, or acceleration of the motor.
Connection

Mounting Bracket

The mounting holes on this motor are compatible with the 3338 - Mounting Bracket (NEMA17).

Bracket
Product Specifications

 

Motor Properties

Motor Type Bipolar Stepper
Manufacturer Part Number 42STH38-1684B / 36JXS60K26
Step Angle 0.067°
Step Accuracy ± 5 %
Holding Torque 30 kg·cm
Rated Torque 30 kg·cm
Maximum Speed (w/1067 Motor Controller) 174 RPM
Acceleration at Max Speed
(w/1067 Motor Controller)
600000 1/16 steps/sec²

 

Electrical Properties

Recommended Voltage 12 V DC
Rated Current 1.7 A
Coil Resistance 1.7 Ω

 

Physical Properties

Shaft Diameter 8 mm
Rear Shaft Diameter 3.9 mm
Mounting Plate Size NEMA - 17
Weight 503 g
Number of Leads 4
Wire Length 300 mm

 

Gearbox Properties

Gearbox Type Planetary
Gear Ratio 26 103121 : 1
Backlash Error 1 12°
Maximum Strength of Gears 30 kg·cm
Shaft Maximum Axial Load 49.1 N
Shaft Maximum Radial Load 98.1 N

 

Warning



warning 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.



Resources

 

Additional Information

SKU ES001657
Manufacturer Phidgets

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