Lin Engineering
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X8718 Series
Extreme Torque Hybrid Stepper Motor

Features and Benefits:
  • Higher Dynamic Torque
  • Higher Speed
  • Smaller Size And Weight
  • Higher Efficiency Per Watt
  • Reduced Heat Generation
  • NEMA 34 (3.390 in) Frame Size
  • 1.8° Step Angle
  • 2.66 to 6.18 in Length
  • 679.74 to 2124.18 oz-in Holding Torque


Model #NEMA sizeFrame sizeStep AngleConnection TypeLength, inCurrent AMPHolding Torque, oz-inResistanceInertia, oz-in²Weight, lbs# of LeadsAvailability
X8718-067-35NEMA 343.390 in1.8°Bipolar2.660 in3.5 AMP679.74 oz-in0.955 oz-in²3.527 lbs4Online
X8718-067-50NEMA 343.390 in1.8°Bipolar2.660 in5 AMP679.74 oz-in0.485 oz-in²3.527 lbs4Online
X8718-097-35NEMA 343.390 in1.8°Bipolar3.780 in3.5 AMP1274.51 oz-in1.348.09 oz-in²5.952 lbs4Online
X8718-097-50NEMA 343.390 in1.8°Bipolar3.820 in5 AMP1274.51 oz-in0.618.09 oz-in²5.952 lbs4Online
X8718-126-35NEMA 343.390 in1.8°Bipolar4.940 in3.5 AMP1741.83 oz-in1.4412.03 oz-in²8.378 lbs4Online
X8718-126-50NEMA 343.390 in1.8°Bipolar4.940 in5 AMP1741.83 oz-in0.7212.03 oz-in²8.378 lbs4Online
X8718-157-35NEMA 343.390 in1.8°Bipolar6.180 in3.5 AMP2124.18 oz-in1.8120.45 oz-in²11.31 lbs4Online
X8718-157-50NEMA 343.390 in1.8°Bipolar6.180 in5 AMP2124.18 oz-in0.920.45 oz-in²11.31 lbs4Online

Torque Curves


  • X8718-067-35
  • X8718-067-50
  • X8718-097-35
  • X8718-097-50
  • X8718-126-35
  • X8718-126-50
  • X8718-157-35
  • X8718-157-50

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


ModelDIM. A (length) in
X8718-067-352.660 in
X8718-067-502.660 in
X8718-097-353.780 in
X8718-097-503.820 in
X8718-126-354.940 in
X8718-126-504.940 in
X8718-157-356.180 in
X8718-157-506.180 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 face39 lbs
Dimension "K"0.900 in
Max Axial Load15 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 VAC for 1 minute

Features And Benefits

The X8718 Series Motors are High Power Density motors ideal for applications that require higher speed and torque or increased efficiency. 

Higher Dynamic Torque


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Higher power density means that X-Series can deliver more torque at your targeted speed than competitor’s motor of the same size. This is thanks to our unique motor design which provides exceptional torque to size ratio.  X-Series are ideal for applications requiring higher dynamic torque.

Higher Speed


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High power density means that X-Series can deliver higher speed at your target torque than a competitor’s motor. Our unique motor design allows for greater efficiency, which extends the speed range of the motor at specified torque points while maintaining the same voltage as the competing motors.  X-Series are ideal for applications that require moving load at higher speeds.

Smaller Size and Weight

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Higher power density means that you can get more performance out of a smaller and lighter package. X-Series offer similar performance to larger frame size, or longer stack length motors. This makes them ideal for space or weight constrained applications.

Higher Efficiency Per Watt

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Higher power density means that X-Series can operate more efficiently at your specified speed and torque requirements. This is especially important for applications that are sensitive to power draw, such as battery-operated devices, where every watt matters. The result is that X-Series can deliver the same performance as competing integrated motors while drawing less power.

Reduced Heat Generation

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The high efficiency and low power draw of X-Series results in the motor generating less heat. Furthermore, the motor’s winding can be customized to operate at its highest efficiency for the application. This reduces heat generation even further. X-Series are ideal for applications where heat generation needs to be minimized.

Efficient at Lower Voltage

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Higher power density means that torque at speed can be achieved at a lower voltage than competing motors.  X-Series are ideal for applications that are voltage constrained.

X-Series can be customized further to operate at their highest efficiency during a specified workload. This results in faster acceleration and more torque during the application’s workload

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.