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AKM™ Series Servo Motor

Our wide range of standard configurations offer the same advantages as a custom solution

With more than 500,000 standard products and practically unlimited co-engineered modifications, selecting the right-fit motor—optimized for your specific application requirements—has never been easier.

  • Extensive choice and flexibility from a wide range of standard products and co-engineered modifications for an exact fit to your design requirements
  • Best-in-class performance, with industry-leading power density
  • Exceptionally low cogging and low harmonic distortion to ensure smooth performance
  • Easy to commission and use, with plug-and-play motor recognition and full-frequency autotuning on AKD™ Series servo drives
Product available worldwide
AKM Family_l
Industry 4.0 Ready



  • 8 frame sizes, 28 frame/stack combinations
  • Speeds up to 8,000 RPM
  • 75 VDC; 120, 240, 480 VAC windings
  • A wide variety of feedback devices, mountings and seals
  • Direct mate to most Kollmorgen servo drives
  • Windings are rated at 100°C rise over a 40°C ambient while using 155°C (class F) insulation materials
  • cURus, CE Compliant, UL Recognition


  • Feedback devices: resolver, SFD, incremental and sine encoders
  • Seals for improved environmental protection
  • Shaft ends closed or open keyway, flat, smooth
  • Dual or single Intercontec connectors, straight or rotatable
  • 24 VDC fail-safe brakes
  • IP67 washdown versions with food-grade greases and finishes


Stack Length 1,2,3 1,2,3,4 1,2,3 1,2,3,4 1,2,3,4 2,3,4,5 2,3,4 2,3,4
Windings B,C,D,E C,D,E,F,G C,D,E,H C,E,G,H,J,K E,G,K,L,M,N G,K,L,M,N,P K,L,M,P T
Max BUS (VDC) 320 640 640 640 640 640 640 640
Max Stall Tc
Nm (lb-in)
Max Tp
Nm (lb-in)
Max Rated N 8000 8000 7000 6000 6000 6000 3500 3000
Max Rated Power
@ Max BUS
kW (Hp)

Servo Motor Product Selector

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Count on Kollmorgen support to help you design and build a successful machine and keep it reliably productive, anywhere in the world. Our co-engineering experts will work with you to tailor a perfect-fit solution for your motion requirements.

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For more than 100 years, Kollmorgen has been creating innovative solutions that bring big ideas to reality, keep the world safer and improve lives. Our history of reliability is unsurpassed, and our solutions are supported through engineering centers of excellence and customer service in all major regions of the world.

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Title Language(s) Date Size
pdfAKD2G, AKD Accessories Guide Europe EN (REV 11-2019) English 10 Dec 2019 6.67 MB Copy URL
pdfAKD2G, AKD and S700 Accessories Guide North America EN (REV J) English 10 Dec 2019 5.35 MB Copy URL
pdfAKM Instruction Manual EN DE IT ES FR RU (REV 10/2019) English, French, German, Italian, Russian, Spanish 25 Oct 2019 5.87 MB Copy URL
pdfAKM Part Number Scheme and Connectivity English 27 May 2020 1.07 MB Copy URL
pdfAKM Transport Instruction Manual EN (REV 12-2010) English 01 Dec 2010 956.86 KB Copy URL
Title Language(s) Date Size
pdfAKM Servomotor EU Declaration of Conformity EN English 30 Jul 2019 75.9 KB Copy URL
pdfAKM Servomotor EU Declaration of Conformity US EN English 01 Apr 2016 176.25 KB Copy URL
pdfApprovals and Certifications English, German, Russian 04 May 2017 2.66 MB Copy URL
pdfEAC Certification for Motors English, Russian 03 Jul 2017 3.58 MB Copy URL
Kollmorgen Servo & Stepper Motor Online UL Certification English 01 Feb 2017 Copy URL
pdfRoHS General Declaration English, German 01 Oct 2015 44.37 KB Copy URL
Application Notes
Title Language(s) Date Size
pdfA Simplified Machine Design Approach for Optimal Servomotor Control English 05 Feb 2015 522.96 KB Copy URL
pdfDBL Motor to AKM Mounting Cross Reference English 10 Aug 2017 335.1 KB Copy URL
pdfServo Motor Phasing with Hall Commutation English 05 Feb 2015 524.36 KB Copy URL
pdfServomotor Parameters and their Proper Conversions for Servo Drive Utilization and Comparison English 05 Feb 2015 656.98 KB Copy URL
Title Language(s) Date Size
Kollmorgen 2G Cable Guide English 14 Mar 2019 Copy URL
Title Language(s) Date Size
Kollmorgen 2G Cable Guide English 14 Mar 2019 21.67 MB Copy URL
Kollmorgen 2G Cable Guide (Interactive) English 15 Mar 2019 Copy URL
Kollmorgen AKM Servomotor Selection Guide English 04 Jan 2018 9.83 MB Copy URL
Kollmorgen AKM Servomotor Selection Guide S4W Italy English 24 Oct 2018 3.89 MB Copy URL
Kollmorgen Automation and Motion Control English 06 Nov 2019 15.76 MB Copy URL
Kollmorgen Automation Solutions and Product Catalog EMEA English 21 Jun 2018 15.99 MB Copy URL
Kollmorgen Automation Suite (KAS) Catalog English 01 Dec 2017 14.02 MB Copy URL
Kollmorgen Optimized Solutions and Special Duty Motors English 01 Jan 2018 1.26 MB Copy URL
Title Language(s) Date Size
Kollmorgen Motion Components Brochure EN RevB English 14 Oct 2011 1.81 MB Copy URL
Kollmorgen Robotic Solutions Brochure EMEA English 23 May 2018 2.56 MB Copy URL
Packaging Brochure EN English 28 Aug 2013 2.14 MB Copy URL
Robotic Solutions Brochure English 17 Apr 2018 3.06 MB Copy URL

These 3D models are intended to guide your design activities and may be used as reference information. Be sure to consult a Kollmorgen expert to ensure you have the most current and accurate information for critical aspects of design work

Title Language(s) Date Size
AKM 3D Models & 2D Dimensions English 05 Jun 2018 Copy URL
Resolver Based AKM Motors to CD Series Drives This document explains how to compensate for the settings and offsets between the AKM motors and CD Series Drives.  It covers the different phase nomenclature between the motors and...
Incremental Encoder AKM motors to CD Series Drives This document explains how to compensate for the settings and offsets between the Incremental Encoder AKM motors and CD Series Drives. It includes phase nomenclature as well as MOTORTYPES, setting...
Servoantrieb Ein Servoantrieb umfasst grundsätzlich einen intelligenten Servoverstärker und einen Servomotor, der in Verbindung mit einer SPS oder CNC für komplexe, spezialisierte Bewegungen in...
Servomotoren [toc] Allgemeines Der Servomotor ist ein Motor, der verschiedene vorgebbare Positionen anfahren kann und diese dann beibehält im Sinne eines Stellantriebs. Die Position ist dabei im Falle eines...
Resolver+SFD Stecker Washdown Motor Ansicht  Einsatz Kontakte Schirmanschluss Maße Steckerbelegung Resolver (Feedback code R-) SFD (Feedback code C-) Technische Daten...