Lin Engineering
Featured product media

3709 Series
Hybrid Stepper Motor

Features and Benefits:
  • Signature Series Technology for ultimate smooth motion and high accuracy
  • 7 different mounting options
  • NEMA 14 (1.440 in) Frame Size
  • 0.9° Step Angle
  • 0.55 to 1.19 in Length
  • 5.35 to 21.24 oz-in Holding Torque


Model #NEMA sizeFrame sizeStep AngleConnection TypeLength, inCurrent AMPHolding Torque, oz-inResistanceInertia, oz-in²Weight, lbs# of LeadsAvailability
3709R-09NEMA 141.440 in0.9°Bipolar1.190 in0.8 AMP21.24 oz-in5.80.11 oz-in²0.41 lbs4quote
3709R-10NEMA 141.440 in0.9°Bipolar1.190 in1 AMP21.24 oz-in30.11 oz-in²0.41 lbs4quote
3709V-03NEMA 141.440 in0.9°Bipolar0.820 in1.2 AMP15.58 oz-in30.07 oz-in²0.271 lbs4online
3709V-06NEMA 141.440 in0.9°Bipolar0.820 in0.8 AMP15.58 oz-in70.07 oz-in²0.271 lbs4quote
3709V-18NEMA 141.440 in0.9°Bipolar0.820 in0.6 AMP15.58 oz-in100.07 oz-in²0.271 lbs4online
3709X-15NEMA 141.440 in0.9°Bipolar0.610 in0.3 AMP6 oz-in15.10.04 oz-in²0.181 lbs4quote
3709X-51NEMA 141.440 in0.9°Bipolar0.610 in0.6 AMP7.46 oz-in50.04 oz-in²0.181 lbs4quote
3709Y-51NEMA 141.440 in0.9°Bipolar0.590 in0.6 AMP6 oz-in40.02 oz-in²0.161 lbs4quote
3709Z-12NEMA 141.440 in0.9°Bipolar0.550 in0.3 AMP5.35 oz-in15.40.02 oz-in²0.121 lbs4quote

Torque Curves


  • 3709R-09
  • 3709R-10
  • 3709V-03
  • 3709V-06
  • 3709V-18

Find the motor that fits your Target Torque (oz-in) and Target Speed (RPM)


ModelDIM. A (length) in
3709R-091.190 in
3709R-101.190 in
3709V-030.820 in
3709V-060.820 in
3709V-180.820 in
3709X-150.610 in
3709X-510.610 in
3709Y-510.590 in
3709Z-120.550 in

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. 


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.