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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
76mm Outer Diameter Frameless Torque Motor
| Motor Specifications | 76WK-口00930-48V-45-10 | 76WK-口01330-48V-45-15 | 76WK-口02030-48V-45-28 | |
| DC Voltage | 48 |
48 | 48 | |
| Rated Power(W) | 282.7 | 392.7 | 660 | |
| Rated Torque(NM) | 0.9 |
1.25 | 2.1 | |
| Maximum Torque(NM) | 2.7 | 3.75 | 6.3 | |
| Rated Current(A) | 8.2 | 10.5 | 16 | |
| Maximum Current(A) | 24.5 | 31.5 | 48 | |
| Rated Speed(RPM) | 3000 | 3000 | 3000 | |
| Maximum Speed(RPM) | 4500 | 4500 | 4500 | |
| Moment of Inertia(kg.cm2) | 0.4 | 0.675 | 1.037 | |
| Coefficient of counter-electromotive force(V/Krpm) | 7 | 7.5 |
8.5 | |
| Wire resistance(ohms@20°C) | 0.36 | 0.22 | 0.11 | |
| Wire Inductance(mH) | 0.3 | 0.24 | 0.12 | |
| Polar Coordinates(2P) | 10 |
10 | 10 |
|
| Weight(g) | 260 | 350 | 580 | |
| Tooth-Slot Torque(mN.m) | 18（Reference Values） | 40（Reference Values） | 67（Reference Values） | |
| Dimensions(mm) | L1 (Core Height) | 10 | 14.5 | 27.5 |
| L2 (Rotor Height) | 11 | 15.5 | 28.5 | |
| L3 (Overall Height) | 18.9 | 23.6 | 36.7 | |
