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Product Description
The WHEATSTONE Frameless Motors is engineered for direct integration into customer equipment, offering high torque density, compact design, and precision control. Without a housing, bearings, or feedback device, frameless motors provide maximum design flexibility for engineers who require performance in space-constrained applications.
Compact Integration – Stator and rotor kit design allows direct installation into mechanical structures.
High Torque Density – Optimized electromagnetic design delivers strong torque in a compact footprint.
Precision Performance – Smooth speed regulation and accurate positioning for demanding motion systems.
Thermal Efficiency – Advanced winding technology ensures efficient heat dissipation under high load.
Flexible Design – Customizable dimensions, winding configurations, and mounting options.
Reliability – Built with high-quality insulation materials for long service life in continuous operation.
Motor Type: Frameless Brushless Servo Motor (Stator + Rotor Kit)
Voltage Range: Customizable (Low to High DC/AC supply options)
Torque Output: High torque-to-weight ratio
Cooling: Natural cooling / optional liquid or forced-air cooling
Materials: High-grade laminations, copper windings, rare-earth magnets
Applications: Robotics, aerospace, medical devices, direct-drive systems, industrial automation
104mm Outer Diameter Frameless Torque Motor
| Motor Specifications | 104WK-口02330-48V-73-14 | 104WK-口04430-48V-73-29 | |
| DC Voltage | 48 | 48 | |
| Rated Power(W) | 722.5 | 1382.3 | |
| Rated Torque(NM) | 2.3 | 4.4 | |
| Maximum Torque(NM) | 6.9 | 13.2 | |
| Rated Current(A) | 18.5 | 33.5 | |
| Maximum Current(A) | 55.5 | 100 | |
| Rated Speed(RPM) | 3000 | 3000 | |
| Maximum Speed(RPM) | 4000 | 4000 | |
| Moment of Inertia(kg.cm2) | 1.844 | 3.694 | |
| Coefficient of counter-electromotive force(V/Krpm) | 7.5 | 8.5 | |
| Wire resistance(ohms@20°C) | 0.1 | 0.04 | |
| Wire Inductance(mH) | 0.08 | 0.05 | |
| Polar Coordinates(2P) | 11 | 11 | |
| Weight(kg) | 0.52 | 0.9 | |
| Tooth-Slot Torque(mN.m) | 69（Reference Values） | 132（Reference Values） | |
| Dimensions(mm) | L1 (Core Height) | 14 | 29 |
| L2 (Rotor Height) | 15 | 30 | |
| L3 (Overall Height) | 28 | 43 | |
86-0519-86163211，86-0519-86163212 
