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KBM Series Frameless

KBM™ Series Frameless Motors

The KBM™ Series provides low- and high-voltage motors (120–480 Vac) designed to be directly embedded in your machine using the machine’s own bearings to support the rotor. With a huge selection of standard motors—plus our ability to quickly and cost-effectively modify leads, windings, stack lengths and more—you can choose an exact-fit frameless motor that provides simple installation, long life and the highest performance in the most compact space.

Get a Quote Selection Guide

Global
Product available worldwide

Features

Features

  • Fully encapsulated stator windings
  • 155°C internal winding temperature continuous capability
  • PTC thermistor (avalanche-type) overload protection
  • Rare-earth neodymium iron boron magnets
  • Fail-safe bands over rotor magnets
  • RoHS compliant
  • UL and CE agency facilitation (Excluding UL for KBM frame sizes 118, 163, and 260)
  • Optimizations include rotor hub dimensions, stack length, diameter, mounting features, windings, insulation, connection type and much more
  • Optional latching digital Hall effect sensors are pre-aligned and factory-installed with added axial rotor length to achieve proper triggering

Benefits

  • Direct load connection eliminates maintenance of gearboxes, belts or pulleys
  • Zero backlash and compliance provides more responsive system performance
  • Eliminates coupling devices, reducing overall machine size
  • Embedded motor enables compact machine design, helps protect your intellectual property
  • Huge selection of standard motors and co-engineered modifications for an exact fit, without the time, expense and risk of a fully customized motor
  • 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.

Specifications

KBM(S) FramesOutside DiameterThrough BoreContinuous Stall TorquePeak Stall TorqueContinuous Output KW
"Servo" Form Factor
"Torquer" Form Factor
KBM(S)-1059.96 mm
(2.95 in)
16.01 mm
(.63 in)
.49 - 1.45 Nm1.17 - 4.91 Nm0.55 - 0.910 KW
KBM(S)-1474.9 6mm
(2.95 in)
20.01 mm
(.79 in)
1.22 - 2.92 Nm3.28 - 10.50 Nm0.58 - 1.23 KW
KBM(S)-1784.96 mm
(3.34 in)
30.01 mm
(1.18 in)
2.06 - 6.20 Nm5.95 - 24.00 Nm0.715 - 1.55 KW
KBM(S)-25109.96 mm
(4.33 in)
50.01 mm
(1.97 in)
4.85 - 11.1 Nm14.4 - 54.8 Nm0.73 - 3.255 KW
KBM(S)-35139.96 mm
(5.51 in)
65.01 mm
(2.56 in)
12.4 - 25.9 Nm40.8 - 93.0 Nm2.75 - 5.75 KW
KBM(S)-45189.96 mm
(7.48 in)
85.02 mm
(3.35 in)
29.7 - 54.6 Nm119 - 218 Nm4.525 - 7.670 KW
KBM(S)-43159.78 mm
(6.29 in)
76.28 mm
(3.00 in)
6.11 - 44.2 Nm18.0 - 153 Nm1.23 - 2.875 KW
KBM(S)-57202.90 mm
(7.99 in)
104.17 mm
(4.10 in)
18.8 - 109 Nm60 - 441 Nm2.31 - 3.00 KW
KBM(S)-60229.85 mm
(9.05 in)
105.05 mm
(4.14 in)
29.4 - 154 Nm69.1 - 393 Nm2.96 - 8.42 KW
KBM(S)-79259.63 mm
(10.22 in)
152.43 mm
(6.00 in)
43.5 - 222 Nm152 - 1075 Nm2.585 - 3.75 KW
KBM(S)-88331.46 mm
(13.05 in)
155.01 mm
(6.10 in)
102 - 545 Nm197 - 1200 Nm3.87 - 16.0 KW
KBM(S)-118361.11 mm
(14.22 in)
225.04 mm
(8.86 in)
172 - 672 Nm498 - 2400 Nm7.78 - 19.85 KW
KBM(S)-163605.0 mm
(23.82 in)
315.50 mm
(12.42 in)
764 - 1329 Nm1966 - 3932 Nm17.3 - 20.1 KW
KBM(S)-260850.0 mm
(33.46 in)
557.85 mm
(21.96 in)
1932 - 3445 Nm6494 - 12812 Nm13.7 - 18.5 KW

Selection Guide Design Tools

Direct Drive Rotary Product Selector

Kollmorgen Product Selector

Media & Downloads

Title File Language Date Share URL
KBM Part Number Scheme English
Share URL /sites/default/files/public_downloads/kbm_partnumber_e_0.pdf
Title Language Date Share URL
Kollmorgen Full-line Catalog English Share URLview
Kollmorgen Automation Solutions and Product Catalog EMEA English Share URLview
Kollmorgen Frameless Motor Selection Guide UK English Share URLview
Kollmorgen KBM Series Brushless Motors Selection Guide English Share URLview
Kollmorgen Robotic Solutions Brochure EMEA English Share URLview
Robotic Solutions Brochure English Share URLview
Title File Language Date Share URL
CE Technical Notice - Servo and Stepper Motors Efficiency English
Share URL /sites/default/files/public_downloads/Kollmorgen%20CE%20Technical%20Notice%20-%20Servo%20and%20Stepper%20Motors%20Efficiency.pdf
CEL China Efficiency Labelling for Servo and Stepper Motors English
Share URL /sites/default/files/public_downloads/CEL%20Technical%20Notice%20on%20Efficiency%20for%20Servo%20and%20Stepper%20Motors.pdf
China Compulsory Product Certification (CCC Technical Notice) English
Share URL /sites/default/files/2024-01/CCC%20Technical%20Notice%20on%20Scope%20of%20Kollmorgen%20Products.pdf
KBM General RoHS10 Certification English
Share URL /sites/default/files/public_downloads/KBM%20general%20RoHS10%20certification%20REV%2006_24_2019.pdf
KBM Reach SVHC Certificate of Compliance English
Share URL /sites/default/files/public_downloads/REACH_223_Standard%20KBM.pdf
KBM/KBMS UL Certification EN English
Share URL /sites/default/files/public_downloads/KBM_KBMS%20UL-Certificate_of_Compliance.pdf
Kollmorgen CE Technical Notice - KBM English
Share URL /sites/default/files/public_downloads/Kollmorgen%20CE%20Technical%20Notice%20-%20KBM.pdf

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 File Language Date Share URL
2D/3D Product Model English
Share URL https://www.kollmorgen.com/en-us/service-and-support/technical/3d-models
KBM 2D Outline Drawing (KBM-10) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBM-10%29_0.pdf
KBM 2D Outline Drawing (KBM-118) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBM-118%29_0.pdf
KBM 2D Outline Drawing (KBM-14) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBM-14%29_0.pdf
KBM 2D Outline Drawing (KBM-163).pdf English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBM-163%29.pdf
KBM 2D Outline Drawing (KBM-17) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBM-17%29_0.pdf
KBM 2D Outline Drawing (KBM-25) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBM-25%20Rev%20E%29.pdf
KBM 2D Outline Drawing (KBM-260) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBM-260%29_0.pdf
KBM 2D Outline Drawing (KBM-35) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBM-35%29_0.pdf
KBM 2D Outline Drawing (KBM-43) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBM-43%29_0.pdf
KBM 2D Outline Drawing (KBM-45) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBM-45%29_0.pdf
KBM 2D Outline Drawing (KBM-57) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBM-57%29_0.pdf
KBM 2D Outline Drawing (KBM-60) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBM-60%29_0.pdf
KBM 2D Outline Drawing (KBM-79) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBM-79%29_0.pdf
KBM 2D Outline Drawing (KBM-88) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBM-88%29_0.pdf
KBM 2D Outline Drawing (KBMS-10) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBMS-10%29_0.pdf
KBM 2D Outline Drawing (KBMS-118) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBMS-118%29_0.pdf
KBM 2D Outline Drawing (KBMS-14) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBMS-14%29_0.pdf
KBM 2D Outline Drawing (KBMS-163).pdf English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBMS-163%29.pdf
KBM 2D Outline Drawing (KBMS-17) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBMS-17%29_0.pdf
KBM 2D Outline Drawing (KBMS-25) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBMS-25%20Rev%20F%29.pdf
KBM 2D Outline Drawing (KBMS-260) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBMS-260%29_0.pdf
KBM 2D Outline Drawing (KBMS-35) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBMS-35%29_0.pdf
KBM 2D Outline Drawing (KBMS-43) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBMS-43%29_0.pdf
KBM 2D Outline Drawing (KBMS-45) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBMS-45%29_0.pdf
KBM 2D Outline Drawing (KBMS-57) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBMS-57%29_0.pdf
KBM 2D Outline Drawing (KBMS-60) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBMS-60%29_0.pdf
KBM 2D Outline Drawing (KBMS-79) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBMS-79%29_0.pdf
KBM 2D Outline Drawing (KBMS-88) English
Share URL /sites/default/files/public_downloads/KBM%202D%20Outline%20Drawing%20%28KBMS-88%29_0.pdf

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