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TBM Series

The Kollmorgen TBM (Torquer Brushless Motor) Series direct drive frameless motor is designed to be directly embedded in your machine, using the machine’s own bearings to support the rotor. This series is designed for applications that require high power in a small, compact form factor with minimized weight and inertia. With a selection of standard motors—plus our ability to quickly and cost-effectively incorporate co-engineered modifications—you can choose an exact-fit motor that provides the highest performance in robotic joints, medical robotics, sensor gimbals, guidance systems and other motion-critical applications.


Product available worldwide
Companion Products 

We designed our next-generation AKD® Series with the versatility, communications, power and bandwidth...

KBM Series Frameless

The KBM™ series offers high performance, long life and simple installation in a motor kit that can...


  • Multiple frame sizes ranging from 60 mm (2.36 inches) up to 129 mm (5.08 inches) OD
  • 24/48/96 VDC standard optimized windings
  • Low Cogging Designs
  • 155°C internal winding temperature continuous capability
  • Stainless steel rotors for corrosion protection
  • Banded Rotors
  • Laser Marked Armatures
  • RoHS Compliant
  • CE compliant at Rated Voltage


  • Custom windings
  • Latching hall effects (pre-aligned and factory installed)
  • Modify any standard product’s characteristics – mechanical dimensions, electrical options and connections, thermal and winding optimization for acceleration or deceleration, torque, speed, power, smoothness, and more – to meet your specific needs.
Frame Size TBM(s)60 TBM(s)76 TBM(s)129
Outside Diameter (in) 60.35mm (2.37 in) 75.97mm (2.99 in) 128.93mm (5.08 in)
Through Bore (in) 28.70mm (1.13 in) 36.07mm (1.42 in) 55.88mm (2.20 in)
Continuous Stall Torque .41 - 1.16 Nm .99 - 2.39 Nm 3.12 - 10.3 Nm
Peak Stall Torque 1.37 - 4.53 Nm 2.86 - 6.89 Nm 8.07 - 39.4 Nm
Standard Stack Lengths
Stator Dim “A”
12.70 mm (0.500 in)
25.40 mm (1.000 in)
50.80 mm (2.000 in)
15.24 mm (0.600 in)
30.73 mm (1.210 in)
46.23 mm (1.920 in)
13.33 mm (0.525 in)
41.28 mm (1.625 in)
54.61 mm (2.150 in)
Rated Bus Voltage (VDC) 48 VDC 48 VDC 100 VDC
Max Stall Tc
Nm (oz-in or lb-ft)
1.15 Nm (163 oz-in) 2.33 Nm (330 oz-in) 10.3 Nm (7.60 lb-ft)
Max Tp
Nm (oz-in or lb-ft)
5.00 Nm (708 oz-in) 6.74 Nm (955 oz-in) 36.2 Nm (26.7 lb-ft)
Max Rated N 4300 RPM 4025 RPM 2700 RPM
Title Language(s) Date Size Email
Kollmorgen Automation and Motion Control English 01 Dec 2017 14.74 MB
Kollmorgen Automation Solutions and Product Catalog EMEA English 21 Jun 2018 15.99 MB
Kollmorgen Automation Suite (KAS) Catalog English 01 Dec 2017 14.02 MB
Kollmorgen Optimized Solutions and Special Duty Motors English 01 Jan 2018 1.26 MB
Kollmorgen TBM Frameless Motor Selection Guide English 01 Jan 2018 1.62 MB
Kollmorgen Automationslösungen Katalog German 09 Apr 2017 11.17 MB
KOLLMORGEN Motion Control- und Antriebslösungen Katalog CH German 01 Jan 2019 12.99 MB
Kollmorgen delle soluzioni per automazione e movimento Catalogo Italian 01 Jan 2019 11.43 MB
Kollmorgen otomasyon ve hareket kontrol çözümleri kataloğu TR Turkish 12 Feb 2016 11.05 MB
科尔摩根 TBM(S)无框力矩电机选型指南-高 RevA Chinese, Simplified 01 Feb 2016 29.81 MB
科尔摩根 运动控制及伺服系统解决方案 Chinese, Simplified 26 Jan 2018 16.64 MB
Title Language(s) Date Size Email
Kollmorgen Motion Components Brochure EN RevB English 14 Oct 2011 1.81 MB
Kollmorgen Robotic Solutions Brochure EMEA English 23 May 2018 2.56 MB
Robotic Solutions Brochure English 17 Apr 2018 3.06 MB
Robotertechnik Broschüre German 26 Mar 2018 2.06 MB
Servomotori per Robotica Brochure Italian 26 Mar 2018 2.4 MB
Robotik Motor Çözümleri Turkish 28 Mar 2018 2.15 MB

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 Email
2D/3D Models for All TBM Series English 13 Sep 2018
PDFTBM-129XX-X00 Direct Drive Frameless 2D Drawing English 19 May 2014 96.03 KB
PDFTBM-60XX-X00 Direct Drive Frameless 2D Drawing English 19 May 2014 118.45 KB
PDFTBM-76XX-X00 Direct Drive Frameless 2D Drawing English 19 May 2014 121.13 KB
PDFTBMS-129XX-X00 Direct Drive Frameless 2D Drawing English 19 May 2014 181.89 KB
PDFTBMS-60XX-X00 Direct Drive Frameless 2D Drawing English 19 May 2014 168.9 KB
pdfTBMS-76XX-X00 Direct Drive Frameless 2D Drawing English 19 May 2014 359.79 KB
Product Selectors
Product Selectors

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Performance Curve Generator
Performance Curve Generator

Optimize your motor system performance using our NEW Motor Performance Curve Generator Tools for Frameless Motors and AKM & AKM2G.

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