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International Express（DHL/FEDEX/TNT/UPS/ARAMEX）/sea Freight / Air Freight / International Special Line
Freight Charge
For Industrial Equipment (e.g., PLC Modules, Inverters..), Shipping Cost Varies By Package Weight/volume And Delivery Location. Contact Our Sales Team For A Customized Shipping Solution And Quote
International Express（DHL/FEDEX/TNT/UPS/ARAMEX）/sea Freight / Air Freight / International Special Line
Freight Charge
For Industrial Equipment (e.g., PLC Modules, Inverters..), Shipping Cost Varies By Package Weight/volume And Delivery Location. Contact Our Sales Team For A Customized Shipping Solution And Quote
Original Kollmorgen TBM/KBM Series Frameless Motor for Humanoid Robot Actuators
With over a century of motion control expertise, Kollmorgen's KBM and TBM series of brushless DC (BLDC) frameless motors are designed for high-performance mechanical integration. The frameless design allows the motor's stator and rotor to be integrated directly into the machine, utilizing the equipment's own bearings for support. Particularly in humanoid robots, collaborative arms, and precision medical devices, Kollmorgen motors are the preferred choice for top engineers worldwide due to their superior torque density, low cogging, and exceptional service life.
Product Highlights
Extreme Torque Density: Delivers massive continuous torque within a minimal footprint, significantly enhancing the dynamic response of robotic joints.
Compact & Lightweight Integration: The housingless, shaftless, and bearingless design reduces system weight and minimizes the physical dimensions of the joint.
Ultra-Low Cogging: Optimized magnetic circuit design ensures exceptional smoothness even at very low speeds.
Wide Voltage Compatibility: The TBM series is optimized for 24-48V DC battery power (ideal for mobile robots), while the KBM series supports up to 480V AC high voltage.
Superior Thermal Performance: The stator is mounted directly to the machine housing, allowing for efficient heat dissipation through the equipment structure to increase continuous power output.
Unmatched Reliability: By eliminating failure-prone bearings and seals, the theoretical lifespan of the motor far exceeds that of conventional packaged motors.
Core Parameter Table (TBM Low-Voltage Series)
Series
Stator OD (mm)
Cont. Torque (Nm)
Peak Torque (Nm)
Rated Speed (rpm)
Voltage (VDC)
TBM-60
60
0.45 - 1.2
1.5 - 4.2
3000 - 5000
24 - 48
TBM-76
76
0.8 - 2.5
3.2 - 9.0
2500 - 4500
24 - 48
TBM-102
102
1.5 - 5.0
6.0 - 18.0
2000 - 4000
48 - 72
TBM2G-050
50
0.3 - 0.8
1.0 - 2.5
4000
48
TBM2G-060
60
0.6 - 1.5
2.0 - 5.0
3500
48
Application Fields
Humanoid Robots: High-torque core drives for hip, knee, and shoulder joints.
Semiconductor Equipment: Direct-drive rotary tables for high-cleanliness environments.
Frequently Asked Questions
Q: Is installing frameless motors difficult? Do I need special tools?
A: Installing frameless motors requires precise mechanical alignment. Kollmorgen provides detailed guides and optional digital alignment aids. Custom mounting fixtures are usually required to ensure concentricity between the stator and rotor.
Q: Do you offer the latest TBM2G series?
A: Yes, we provide the full Kollmorgen catalog, including the new TBM2G series, which offers approximately 30% more torque in the same size—ideal for next-gen robot development.
Q: Does the motor come with an integrated encoder?
A: Frameless motors do not include feedback devices. Depending on your application, we can assist in configuring a suitable hollow-shaft encoder (e.g., Renishaw or Heidenhain).
Q: Are thermal sensors available?
A: Most models can be equipped with PT1000 or thermistors. For high-load robotic joints, we strongly recommend thermal sensors to prevent overheating damage.
Q: What is the typical lead time?
A: We maintain a small stock of popular models (3-5 day shipping). Large-scale or customized orders typically require an 8-12 week production cycle.
Q: Can you provide matching drive solutions?
A: Yes. Kollmorgen motors pair perfectly with our AKD series or high-performance third-party DC servo drives like Elmo or AMC.
