Lin Engineering
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G3718 Series


Hybrid Stepper Motor

  • NEMA 17 (2.250 in) Frame Size
  • 1.8° Step Angle
  • 0.900 in Length
  • 25.49 oz-in Holding Torque


ModelDIM. A (length) in
G3718V-050.900 in

Torque Curves



Motor Specifications

Part NumberG3718V-05
Step Angle1.8°
Frame Size2.250 in
Body Length0.900 in
Current (AMP)0.3 AMP
Holding Torque25.49 oz-in
Rotor Inertia0.08 oz-in²
Number of leads4
Weight0.29 lbs

Operating Specifications

Radial Play0.001 in @ 1.00 lbs
End Play0.003 in @ 3.00 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 face6.00 lbs
Dimension "K"0.550 in
Max Axial Load6.00 lbs
Maximum Case Temperature176 °F maximum
Ambient Temperature-4 ° to 122 °F
Storage Temperature-4 ° to 212 °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 & Benefits

It runs cooler

The G3718V whisper torque motor incorporates a heat-sink design within the stator laminations to allow for passive cooling. When your motor operates cooler, you can increase power to gain more torque without overheating, or you can save energy and still perform at an optimal performance. This is what makes all G-series steppers from Lin so unique: the motors are green and energy efficient.


It’s slimmer

The G3718V is slim by design. End caps are laser welded to the stator, eliminating much wasted space in traditional stepper motor designs. This laser welding assembly eliminates the need for assembly screws to hold the motor together. This unique construction offers great length to torque ration. At only 22.8mm long, the motor produces 25 oz-in of torque. Applications can mount this motor by utilizing the 4 through holes that are designed into the stator lamination.


It’s customizable

If encoder feedback is needed, the sleek and slim CUI encoder is a great addition to the G3718V. CUI’s incremental AMT encoder series uses a patented capacitive technology that increases durability and reduces power consumption. Choose from various quadrature resolutions up to 4096 PPR.


It’s smooth, quiet, accurate, and delivers ample amount of torque

This stepper motor is a 1.8 degree per step motor, but it is as smooth as Lin’s smoothest 0.9 degree stepper. With all the know-how and technology that Lin Engineering brings, implementing key design aspects from the 0.9 line into the G3718V has created a motor that wins in both smoothness, accuracy and torque. In traditional designs, one must compromise torque for smoothness or vice versa. With the G3718V, you can still get both.

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G3718 Series

Related Products


Lin Engineering Catalog 2020 (PDF)
Motor Numbering System (PDF)
G3718V 3D Models (ZIP)
G3718V-05 Datasheet (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.