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LHTM52 Series 52MM Frameless Torque Motor/Inner Rotor / Robot Dog / Dexterous Hand / Joint Module

For demanding motion control applications, Linghu Frameless Torque Motors offer a compact hollow direct-drive design without housings, bearings, or end covers. Featuring high precision, smooth operation with low cogging torque, and excellent overload capacity, these motors can be customized for various requirements. They are commonly integrated into robotics, automotive systems, semiconductor equipment, and other advanced automation machinery.
Availability:
Quantity:
  • 52

Product Advantage

Frameless brushless DC motors are designed for maximum integration with your components, minimizing waste and redundancy. Our range of frameless brushless DC motors is available in a variety of sizes and rated torque options.

  • High integration, high torque density

  • High efficiency, using an encoder for feedback

  • Low cogging effect – a unique magnetic circuit design reduces cogging effect

Technical Parameters

Model

5233

Performance Item

Parameter Value

Stator Outer Diameter [mm]

52

Stator Overall Length [mm]

33.5

Stator Stack Length [mm]

26

Rotor Inner Diameter [mm]

32

Rotor Overall Length [mm]

27

Voltage [Vdc]

48

Rated Power [W]

250

Rated Torque [N·m]

0.68

Rated Current [Arms]

6.45

Rated Speed [RPM]

3500

Peak Current [Arms]

19.4

Peak Torque [N·m]

2

Peak Speed [rpm]

5000

Torque Constant [N·m/Arms]

0.11

Rotor Moment of Inertia [kg·cm²]

0.13

Back EMF Constant [V/Krpm]

9.55

Line Resistance @ 20°C [Ω]

-

Line Inductance @ 1 kHz [mH]

-

Number of Pole Pairs [p]

14

外形图-LHTM5233-无框力矩电机.png

Application

For Robotics applicationn:

humanoid robots,

quadruped robots,

collaborative robots and manipulators

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FAQ

Q1: Can your frameless torque motors be customized for different voltage, torque and dimension requirements?

Answer: Our full frameless torque motor portfolio supports standardized ODM and OEM engineered customization. Adjustable parameters include operating voltage, continuous&peak torque, bore size, stack length and winding schemes. We offer engineered sample validation and serial production to meet clients’ bespoke mechanical and motion system specifications.

Q2: Which typical application scenarios are frameless torque motors most suitable for?

Answer: These high-precision frameless direct-drive motors are engineered for high-end industrial and precision fields, covering humanoid robot joints, medical automation, optical precision turntables, aerospace actuation units and semiconductor precision handling automated equipment.

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