NEMA 34 Hudson™ Servo Motor
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Teknic's Hudson servo motors are designed to excel in the most demanding OEM applications, and provide benefits including:

  • Reduced motor footprint and maximized power output with optimized magnet shape, rotor skew, and rotor geometry.
  • Improved machine reliability with a brushless servo motor designed with oversized bearings, class H windings, and 3-year warranty.
  • Increased machine performance with Hudson's high torque density and fast electrical time constant.
Motor Quantity Pricing
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Motor Cable
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This model is Non-Cancelable, Non-Returnable (NC/NR).
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Torque/Speed Data at
With an Optimal Third-Party Drive

Specifications at 300 VDC
Peak Torque
Cont. (RMS) Torque
Max Speed
Peak Power
Cont. (RMS) Power
These specs assume you are using a drive with optimal current. Below are the drive requirements to achieve maximum power.
Peak Current: 40 A
Cont. (RMS) Current: 10 A
Graph Legend
Peak TorqueCont. (RMS) Torque at 40°C



Speed (RPM)
Torque (oz-in)
Torque (N-m)

More Specifications

Motor Frame SizeNEMA 34 - 3.42 in (86.87 mm) sq.
Length3.56 in (90.42 mm)
Insulation RatingClass H, 180° C
# Motor Poles8
Motor Pigtail Length 16 in ± 1 in (406.4 mm ± 25.4 mm)
Shaft Diameter 0.5 in (12.70 mm)
Weight4.6 lb (2.1 kg)
Rotor Inertia8.0 oz-in² (1.5 kg-cm²)
Max Case Temperature85° C
Max Winding Temperature155° C
Ambient Temperature2-40 to +70° C
Operating Conditions No direct fluid wash-down or submerged use
Encoder TypeDifferential signals; incremental
Commutation (Hall) Outputs120° spaced, optical commutation sensors
Maximum Radial Load 50.0 lbf (222.411 N)
Maximum Thrust Load10.0 lbf (44.5 N)
Ambient Humidity 0-95%; non-condensing
Regulatory CertificationsUL recognized; CE; RoHS
Country of OriginUSA
Warranty3 Years

See the user manual* for more electrical specifications.

2The RMS torque limit on certain motors is derated for operation in ambient temperatures above +40 degrees C. Contact Teknic for derating assistance.

Hudson Features

High Power DensityDesigned with advanced 3-D FEA software to optimize magnet shape, stator skew angle, and rotor geometry. You get maximum power in any given motor size to move loads faster, and with more finesse.
Rugged and ReliableBrushless design, oversized bearings, high-temperature windings, fault-tolerant encoder design, and extensive testing of every single motor assures you of lasting reliability.
ResponsiveHigh torque-to-inertia ratio and fast electrical time constant give you the ability to make moves with rapid settling time, precise velocity regulation, and excellent dynamic accuracy.
Smooth/QuietLow torque ripple courtesy of a harmonically-pure back-EMF, combined with individually custom-balanced rotors, gives you ultra-smooth and quiet motion.
VersatileHigh power density and innovative cable management allow Hudson motors to fit into tight spaces. Open-standard design means you can use Hudsons with virtually any brushless servo drive.
USA BuiltCareful design for manufacturability and a large investment in automation allows us to cost-effectively assemble and test Hudsons right here in Rochester, New York, using skilled production technicians.
Unsurpassed WarrantyThree year warranty period—and it doesn't even start counting down until you take the motor out of your inventory and actually start using it (up to an additional six months from date of purchase).


NEMA-34xx-Hudson-Drawing.pdf 2D Drawing 3D Drawings / Solid Models
hudson_manual_web.pdfHudson User Manual
hudson-molex_cable.pdfCable Drawing

Similar Products: ClearPath All-in-One Servo Motors


Integrated Servo Motors

  •  Get a servo motor with drive and controls built in
  •  Save money and eliminate cables
  •  Fractional hp motors start at $249
  •  Integral hp motors start at $698
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International Orders

ClearPath International Shipping Policies

Teknic ships ClearPath products to a number of selected countries outside of the United States. To see if we currently ship to your country, check the drop-down menu in the “Calculate Shipping Cost” box in the shopping cart or the Country drop-down menus on the Checkout page. Products shipped internationally may take up to two more days to ship due to extra processing time, but we will do our best to ship small quantities within three days.

If your destination country is not available for shipments through our website, and your company expects to purchase more than 320 ClearPath motors per year, you may be able to purchase through Teknic's OEM-direct sales channel. Another alternative may be to purchase through our website using the shipping address of a global freight forwarding service. Please fill out our contact form or call us at +1 585 784 7454 for more information on these other options.

IMPORTANT: Additional charges not included in Teknic's shipping charges
Teknic's international shipping charges include express air transportation, brokerage fees, and clearance entry fees, but your destination country may charge you import duties (tariffs) and/or taxes and other fees for the products you import from Teknic. These charges are not included and must be paid by you upon receipt of your shipment.

Unfortunately, we cannot calculate what your additional charges may be because customs and taxation policies vary widely from country to country. As a general guideline, the European Union duty rate for ClearPath motors is 2.7%; the global average import duty rate is about 4%; rates of 8-12% are not uncommon; and a few countries are higher. For exact details, please contact your destination's customs office or visit their official website.

The tariff codes for the products available on our website are as follows:

Product TypeHarmonized System (HS) Tariff Code
DC Input (Fractional hp) ClearPath Servo Motors8501.31.4000
AC Input (Integral hp) ClearPath Servo Motors8501.52.3000
RES-225 Regenerated Energy Shunt8536.30.0000
BLOWER-1P230V Blower Kit8503.00.6060
FOOT-56-14X Mounting Foot8503.00.6060
IPC-3 and IPC-5 Power Supplies8504.40.9530
ASU-FR510 Analog Send Unit8534.00.0040
ClearCore, ClearLink, and CCIO-88534.00.0040
Terminal Block Plugs8536.90.4000
24 VDC Power Supply8504.40.9520
Atmel-ICE Debugger8534.00.0040
DIN Rail Mounting Kit8302.42.3065
Power Hub and SC Hub8534.00.0040
NEMA 23/34 Hudson Servo Motors8501.31.3000
NEMA 23/34 Motor Brakes8505.20
M12 Network Connector Adapter8517.62.0000
M12 Coupler8544.42.0000

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