Lin Engineering
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3518 Series
Hybrid Stepper Motor

Features and Benefits:
  • Signature Series Technology for ultimate smooth motion and high accuracy
  • NEMA 14 (1.390 in) Frame Size
  • 0.9° Step Angle
  • 1.02 to 2.19 in Length
  • 7.08 to 56.64 oz-in Holding Torque


Model #NEMA sizeFrame sizeStep AngleConnection TypeLength, inCurrent AMPHolding Torque, oz-inResistanceInertia, oz-in²Weight, lbs# of LeadsAvailability
3518L-01NEMA 141.390 in1.8°Bipolar2.190 in0.4 AMP55.23 oz-in300.191 oz-in²0.529 lbs4online
3518L-02NEMA 141.390 in1.8°Bipolar2.190 in1 AMP56.64 oz-in5.10.191 oz-in²0.529 lbs4online
3518L-04PNEMA 141.390 in1.8°Bipolar2.190 in2 AMP56.64 oz-in1.340.191 oz-in²0.529 lbs4online
3518L-15PNEMA 141.390 in1.8°Bipolar2.190 in1.5 AMP56.64 oz-in2.20.191 oz-in²0.529 lbs4online
3518M-07NEMA 141.390 in1.8°Bipolar1.340 in0.8 AMP19.83 oz-in7.50.08 oz-in²0.351 lbs4online
3518X-04NEMA 141.390 in1.8°Bipolar1.020 in0.45 AMP7.08 oz-in3.80.06 oz-in²0.251 lbs4online
3518X-08NEMA 141.390 in1.8°Bipolar1.020 in0.35 AMP7.08 oz-in8.50.06 oz-in²0.251 lbs4online

Torque Curves


  • 3518L-01
  • 3518L-02
  • 3518L-04P
  • 3518L-15P
  • 3518M-07
  • 3518X-04
  • 3518X-08

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

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"0.620 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

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.

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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.