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5818 Series
Hybrid Stepper Motor

Features and Benefits:
  • High Torque
  • Cost effective
  • NEMA 23 (2.400 in) Frame Size
  • 1.8° Step Angle
  • 1.74 to 2.6 in Length
  • 155.77 to 304.47 oz-in Holding Torque


Model #NEMA sizeFrame sizeStep AngleConnection TypeLength, inCurrent AMPHolding Torque, oz-inResistanceInertia, oz-in²Weight, lbs# of LeadsAvailability
5818L-04PNEMA 232.400 in1.8°Parallel2.600 in2.8 AMP304.47 oz-in1.183.1 oz-in²2.18 lbs4online
5818L-04SNEMA 232.400 in1.8°Serial2.600 in1.4 AMP304.47 oz-in4.73.1 oz-in²2.18 lbs4online
5818M-06PNEMA 232.400 in1.8°Parallel2.200 in2.8 AMP253.49 oz-in1.042.5 oz-in²1.77 lbs4online
5818M-06SNEMA 232.400 in1.8°Serial2.200 in1.4 AMP253.49 oz-in4.142.5 oz-in²1.77 lbs4online
5818X-03PNEMA 232.400 in1.8°Parallel1.740 in2.8 AMP155.77 oz-in0.751.53 oz-in²1.261 lbs4online
5818X-03SNEMA 232.400 in1.8°Serial1.740 in1.4 AMP155.77 oz-in31.53 oz-in²1.261 lbs4online

Torque Curves


  • 5818L-04P
  • 5818L-04S
  • 5818M-06P
  • 5818M-06S
  • 5818X-03P
  • 5818X-03S

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


ModelDIM. A (length) in
5818L-04P2.600 in
5818L-04S2.600 in
5818M-06P2.200 in
5818M-06S2.200 in
5818X-03P1.740 in
5818X-03S1.740 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 face15 lbs
Dimension "K"0.620 in
Max Axial Load13 lbs
Maximum Case Temperature176.00 °F maximum
Ambient Temperature-4 ° to 122.00 °F
Storage Temperature-4 ° 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. 


Lin Engineering Catalog 2020 (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.