Lin Engineering
Featured product media

3709 Series
Hybrid Stepper Motor

  • NEMA 14 (1.440 in) Frame Size
  • 0.9° Step Angle
  • 0.550 in Length
  • 5.35 oz-in Holding Torque


ModelDIM. A (length) in
3709Z-120.550 in

Motor Specifications

Base Motor Part Number3709Z-12
Step Angle0.9°
Frame Size1.440 in
Body Length 0.550 in
Current (AMP)0.3 AMP
Holding Torque 5.35 oz-in
Resistance15.4 ohm
Rotor Inertia0.02 oz-in²
Number of leads4
Weight0.121 lbs

Operating Specifications

Radial Play0.001 in @ 1 lbs
End Play0.003 in @ 3 lbs
Shaft Run Out0.002 TIR
Concentricity of Mounting Pilot to Shaft0.003 TIR
Perpendicularity of Mounting Pilot to Face0.003 TIR
Max Radial Load at Dimension "K" from mounting face6 lbs
Dimension "K"0.500 in
Max Axial Load6 lbs
Maximum Case Temperature176.00 °F maximum
Ambient Temperature-4 °F to 122.00 °F
Storage Temperature-4 °F to 212.00 °F
Humidity Range (%) 85% or less, non-condensing
Magnet Wire InsulationClass B 130 deg C
Insulation Resistance100M Ohm at 500 VDC
Dielectric Strength500 VDC for 1 min

Features and Benefits

Content image

Thin & Compact

3709 Series motors feature flat/puck-shaped design and range from 14 to 22 mm in thickness. Making the motor a perfect fit for compact and portable devices, where size or weight is essential.


How Did We Do It?

The motors feature a unique end-cap design that incorporates the bearings, and the entire unit is sealed and laser welded for strength and longevity of the product. Being resourceful allows us to create a very compact motor.

Content image

High Torque

3709 Series motors are capable of producing up to 16 oz-in of holding torque. This is quite astounding for such a small motor.


Multiple Mounting Options

Motors are offered in variety of standard mounting options in NEMA 17 offsets. Available hole patterns include Thru hole DO 0.13, #4-40 UNC and M3 x 0.5. Additionally, Lin Engineering can place the motor in almost any customer supplied/designed housing imaginable. Multiple Shaft options are also available.

Content image

Part of Our Signature Series

0.9 Degree step angle ensures smooth motion, while Signature Series further reduces resonance
for higher accuracy. The Signature Series was developed to help reduce system resonance and provide overall smooth motion. Depending on Application, using motors with the Signature Series technology may result in up to 40% less resonance being produced.


Content image

Reduce Resonance

Depending on application Signature Series Stepper Motor user can expect anywhere from 10-40% less resonance being produced.

Content image

 Increase Accuracy

The design creates double the detent positions (un-energized cogging) in the standard stepper. When doubled, the amount of torque or drag that each detent position has is decreased by half, thus creating a smoother motor during operation

Customizations & Optimizations

Lin Engineering can ensure that your hybrid stepper motor is optimized to deliver the required performance for your specific application, whether it’s increasing torque at a specific speed range, reducing noise or vibration, or optimizing for minimal power consumption, or making specific modification  to ensure proper and native fit within your assembly.

Content image

Customization Services Include: 

  • Optimized Winding
  • Multiple Shaft Options
  • Customized Leads & Connectors
  • Customized Housings & Mountings
  • Bearings & Lubricants
  • Mechatronic Solutions
  • Environmental Protection
  • Drivers & Controllers, Encoders, Gearboxes & Accessories


Learn More About Motor Customizations & Optimizations

The result is that you’ll get a motor that is fully optimized for your specific applications and configured to seamlessly fit with your assembly. This reduces your product's complexity, and increases the speed and ease of the assembly of your final product. 


Speak with one of our sales representatives about your specific application needs by filling out a request for a quote. 

3709 Series

Related Products


3709Z-12 Configured Datasheet (PDF)
Motor Numbering System (PDF)

Get the motor you need

Just fill out a Request for a Quote form, and tell us about your application and your needs. One of our applications specialists will review your request, and provide you with a quote promptly.