193327 3327 - 42STH38 NEMA-17 Bipolar Stepper with 26.85:1 Gearbox

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

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.
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Details

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.



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.

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.

Product Features

  • 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
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/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

 

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 3.8 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 12°
Maximum Strength of Gears 30 kg·cm
Shaft Maximum Axial Load 49.1 N
Shaft Maximum Radial Load 98.1 N

 

Resources:

Specifications

Part. No. : 3327
NEMA : 17
WINDING : Bipolar
Shaft Diam. mm : 8

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    191067 1067 - PhidgetStepper Bipolar HC - Stepper Motor Controller

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