193335 3335 - 86STH65 NEMA-34 Bipolar Gearless Stepper

3335 - 86STH65 NEMA-34 Bipolar Gearless Stepper

This huge bipolar stepper with a rear shaft has a 1.8° step angle and 30 kg·cm of torque at low speeds.
Prezzi IVA inclusa
€ 94,35 Prezzo
€ 77,34 + VAT



This NEMA-34 motor generates 34 kg-cm of holding torque at 2.8 Amps. It comes with the rear shaft exposed, so you can mount anencoder or shaft coupler.

When connected to a 1067 - PhidgetStepper Bipolar HC, the 3335 has a maximum speed of 200 RPM.

The 3335 stepper motor connects to a bipolar motor controller such as the 1067 - PhidgetStepper Bipolar HC.

The following diagrams show two connection methods: series and parallel.

Series Parallel


Series wiring will result in higher torque when the motor is stopped or at low speeds. Parallel wiring will provide better torque at higher speeds, but less torque overall. Since the current in parallel mode is split between two paths, the current rating is doubled.

When connecting motor wires to one another, you must solder or screw clamp them together rather than just twisting them together.

Note: Make sure to unplug the power cord from the motor controller before switching wires around.

Motor Properties

Motor Type Bipolar Stepper
Manufacturer Part Number 86STH65-2808B
Step Angle 1.8°
Step Accuracy ± 5 %
Holding Torque 34 kg·cm
Rated Torque 30 kg·cm
Maximum Speed (w/1067 Motor Controller) 200 RPM
Acceleration at Max Speed 
(w/1067 Motor Controller)
1E+06 1/16 steps/sec²


Electrical Properties

Recommended Voltage 30 V DC
Coil Resistance 1.4 Ω
Rated Current (Series Wiring) 2 A
Rated Current (Parallel Wiring) 4 A


Physical Properties

Shaft Diameter 12 mm
Rear Shaft Diameter 3.9 mm
Mounting Plate Size NEMA - 34
Weight 1.8 kg
Number of Leads 8
Wire Length 400 mm



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. 

This motor is large enough that the back EMF generated from stalling or changing directions could easily damage your motor controller. If you're planning on using this motor in high-speed or high-torque applications, feel free to contact us for advice.




Part. No. : 3335
NEMA : 34
WINDING : Bipolar
Diam. Asse mm : 12

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