TBM2G, KBM

Frameless motors consist of a separate stator and permanent magnet rotor, designed for direct integration into advanced motion systems.

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Frameless Motors: TBM2G, KBM

Frameless motors offer a compact, high-performance motor design for direct integration into the customer’s mechanical system. By eliminating the need for a housing, bearings or shafts, they enable highly efficient direct-drive solutions with reduced mechanical complexity. Whether used as a stator-and-rotor set, a customized motor solution or a high-performance drive component, these motors are ideal for applications that require precision, power density and reliability in a compact form factor.

TBM™ 2G Frameless Motors

The TBM 2G Series represents the next generation of frameless torque motors. With high torque density, compact dimensions and a lightweight electromagnetic design, these motors are ideal for direct-drive applications requiring high performance, smooth motion and easy integration.

KBM™ Frameless Motors

The KBM Series provides high performance, long service life and flexible integration in a compact frameless design. These motors are designed for demanding machine, automation and motion-control applications where precision, reliability and efficiency are essential.

TBM™ 2G Frameless Motors

TBM2G motors deliver next-generation torque in a more compact electromagnetics package. Designed for direct embedding in your machine, these 48 VDC motors help you engineer each axis to be smaller, lighter, stronger, faster, smoother.

TBM 2G motors are engineered for rotary direct-drive applications that require high power density, smooth operation, fault tolerance and precise motion control. Their compact design makes them particularly suitable for embedded systems, collaborative robots and applications with limited installation space. The TBM 2G Series combines high torque output with low cogging torque and efficient thermal behavior, enabling reliable performance in demanding motion-control systems.

Frameless Direct Drives – Performance on Demand

The TBM 2G motor delivers high torque in a compact, lightweight electromagnetic package while supporting efficient, quiet and reliable operation. Use these frameless brushless torque motors to benefit from proven direct-drive performance in applications where space, weight, precision and durability are critical.

Key Features

Seven frame sizes that meet the most popular embedded equipment and collaborative robot (cobot) designs
Designed for operation at 48 VDC and below
Optional integrated Hall sensors that don’t increase motor length
Multiple standard thermal sensor options to match the most popular drive options in the cobot market
Windings optimized for speed and torque requirements in 3.5 and 15 kg collaborative robot applications
Designed to perform well without exceeding 85°C, but also capable of sustaining full performance at up to 155°C winding temperature on a continuous basis.

Benefits

High load carrying capacity
Energy efficiency
Faster movements
Greater smoothness of motion

At virtually all speeds and energy requirements, you’ll find more efficient frameless torque motor performance—all with significantly lower thermal rise.

Specifications

TBM™2G Frameless Motors – Technical Data

		TBM2G-050xx			TBM2G-060xx			TBM2G-068xx			TBM2G-076xx			TBM2G-085xx			TBM2G-094xx			TBM2G-115xx
Parameter	Dim	08	13	26	08	13	26	08	13	26	08	13	26	08	13	26	08	13	26	08	13	26
Continuous stall torque	Nm	0.27	0.38	0.64	0.45	0.60	0.96	0.63	0.86	1.54	0.89	1.23	2.06	1.21	1.65	2.69	1.58	2.05	3.67	1.90	3.04	6.03
Rated speed	rpm	8000	8000	6600	8000	8000	4400	8000	6900	3400	8000	5600	2800	7500	5300	2600	8000	5900	2700	5800	4900	3100
Motor constant	Nm/√W	0.061	0.082	0.128	0.087	0.114	0.176	0.119	0.157	0.251	0.156	0.201	0.324	0.203	0.271	0.419	0.263	0.331	0.528	0.310	0.464	0.802
Rated power	kW	0.205	0.271	0.363	0.329	0.415	0.380	0.468	0.561	0.521	0.586	0.601	0.544	0.717	0.734	0.650	0.860	0.874	0.897	0.711	0.969	1.430

Downloads

Download the datasheets now:

TBM2G Series

KBM™ Series Frameless Motors

engineered to provide the high-performance, long life and simple installation that today’s design engineers demand.

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.

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™ Series Frameless Motors – Technical Data

KBM(S) Frame Size	Outer Diameter	Through Bore	Continuous Stall Torque	Peak Stall Torque	Continuous Output Power (kW)
Servo Form Factor
KBM(S)-10	59.96 mm	16.01 mm	0.49–1.45 Nm	1.17–4.91 Nm	0.55–0.910 kW
KBM(S)-14	74.96 mm	20.01 mm	1.22–2.92 Nm	3.28–10.50 Nm	0.58–1.23 kW
KBM(S)-17	84.96 mm	30.01 mm	2.06–6.20 Nm	5.95–24.00 Nm	0.715–1.55 kW
KBM(S)-25	109.96 mm	50.01 mm	4.85–11.1 Nm	14.4–54.8 Nm	0.73–3.255 kW
KBM(S)-35	139.96 mm	65.01 mm	12.4–25.9 Nm	40.8–93.0 Nm	2.75–5.75 kW
KBM(S)-45	189.96 mm	85.02 mm	29.7–54.6 Nm	119–218 Nm	4.525–7.670 kW

Downloads

KBM(S) Frame Size	Outer Diameter	Through Bore	Continuous Stall Torque	Peak Stall Torque	Continuous Output Power (kW)
Torquer Form Factor
KBM(S)-43	159.78 mm	76.28 mm	6.11–44.2 Nm	18.0–153 Nm	1.23–2.875 kW
KBM(S)-57	202.90 mm	104.17 mm	18.8–109 Nm	60–441 Nm	2.31–3.00 kW
KBM(S)-60	229.85 mm	105.05 mm	29.4–154 Nm	69.1–393 Nm	2.96–8.42 kW
KBM(S)-79	259.63 mm	152.43 mm	43.5–222 Nm	152–1,075 Nm	2.585–3.75 kW
KBM(S)-88	331.46 mm	155.01 mm	102–545 Nm	197–1,200 Nm	3.87–16.0 kW
KBM(S)-118	361.11 mm	225.04 mm	172–672 Nm	498–2,400 Nm	7.78–19.85 kW
KBM(S)-163	605.0 mm	315.50 mm	764–1,329 Nm	1,966–3,932 Nm	17.3–20.1 kW
KBM(S)-260	850.0 mm	557.85 mm	1,932–3,445 Nm	6,494–12,812 Nm	13.7–18.5 kW

Download the datasheets now:

KBM Series

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TBM2G, KBM

Frameless Motors: TBM2G, KBM

TBM™ 2G Frameless Motors

KBM™ Frameless Motors

TBM™ 2G Frameless Motors

Frameless Direct Drives – Performance on Demand

Specifications

Downloads

TBM2G Series

KBM™ Series Frameless Motors

Features

Benefits

Specifications

Downloads

KBM Series

Contact

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