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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
130mm Outer Diameter Frameless Torque Motor
| Motor Specifications | 130WK-口05008-48V-84-14 | 130WK-口09005-48V-84-23 | 130WK-口18004-48V-84-47 | |
| DC Voltage | 48 | 48 | 48 | |
| Rated Power(W) | 419.2 | 471.6 | 754.56 | |
| Rated Torque(NM) | 5 | 9 | 18 | |
| Maximum Torque(NM) | 11 | 20 | 40 | |
| Rated Current(A) | 18 | 21 | 30 | |
| Maximum Current(A) | 40 | 50 | 70 | |
| Rated Speed(RPM) | 800 | 500 | 400 | |
| Maximum Speed(RPM) | 1400 | 1000 | 800 | |
| Moment of Inertia(kg.cm2) | 2.5 | 3.5 | 10 | |
| Coefficient of counter-electromotive force(V/Krpm) | 26.5 | 35.6 | 39.6 | |
| Wire resistance(ohms@20°C) | 0.21 | 0.245 | 0.136 | |
| Wire Inductance(mH) | 0.59 | 0.72 | 0.422 | |
| Polar Coordinates(2P) | 20 | 20 | 20 | |
| Weight(g) | 900 | 1300 | 2700 | |
| Tooth-Slot Torque(mN.m) | 150（Reference Values） | 270（Reference Values） | 540（Reference Values） | |
| Dimensions(mm) | L1 (Core Height) | 14 | 23 | 47 |
| L2 (Rotor Height) | 15 | 24 | 48 | |
| L3 (Overall Height) | 25.9 | 35.9 | 60.9 | |
| Motor Specifications | 130WK-口05020-84-14 | 130WK-口09015-84-23 | 130WK-口18008-84-47 | |
| DC Voltage | 220 | 220 | 220 | |
| Rated Power(W) | 1048 | 1414.8 | 1509.12 | |
| Rated Torque(NM) | 5 | 9 | 18 | |
| Maximum Torque(NM) | 11 | 20 | 40 | |
| Rated Current(A) | 5.1 | 10 | 10 | |
| Maximum Current(A) | 25 | 25 | 25 | |
| Rated Speed(RPM) | 2000 | 1500 | 800 | |
| Maximum Speed(RPM) | 3000 | 2300 | 1200 | |
| Moment of Inertia(kg.cm2) | 2.5 | 3.5 | 10 | |
| Coefficient of counter-electromotive force(V/Krpm) | 76.2 | 73 | 140 | |
| Wire resistance(ohms@20°C) | 1.98 | 0.87 | 1 | |
| Wire Inductance(mH) | 5.56 | 2.6 | 3.2 | |
| Polar Coordinates(2P) | 20 | 20 | 20 | |
| Weight(g) | 900 | 1300 | 2700 | |
| Tooth-Slot Torque(mN.m) | 150（Reference Values） | 270（Reference Values） | 540（Reference Values） | |
| Dimensions(mm) | L1 (Core Height) | 14 | 23 | 47 |
| L2 (Rotor Height) | 15 | 24 | 48 | |
| L3 (Overall Height) | 25.9 | 35.9 | 60.9 | |
86-0519-86163211，86-0519-86163212 
