Overview
SteadyWin WK4315 is a Robot Motor and Frameless Motor in a mini DC brushless one-piece magnetic ring design. The WK4315 is intended for compact robotic assemblies where a flat, frameless form factor with integrated magnetic ring enables direct integration into joints and gear stages.
Key Features
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Frameless DC brushless construction
Miniature one-piece magnetic ring design suitable for direct mounting into robotic joints and housings.
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Compact dimensions
Motor size 49 x 18.5 mm and inner stator diameter 25 mm for space-constrained assemblies.
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Electrical and performance constants
Speed constant 28 rpm/V and torque constant 0.47 N.m/A for predictable control with servodrives.
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Low thermal and operating range
Rated working temperature -20 ~ 80 C; maximum demagnetization temperature 120 C.
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High pole count
14 pairs of pole pairs for smooth low-speed torque and fine position control.
Technical Specifications
| Nominal voltage | 24 V |
| Nominal current | 0.59 A |
| Nominal torque | 0.28 N.m |
| Nominal speed | 238 rpm |
| Max speed | 660 rpm |
| Stall torque | 0.42 N.m |
| Stall current | 0.9 A |
| Winding turns | 60 T |
| Interphase resistance | 13.84 |
| Interphase inductance | 6.45 mH |
| Speed constant | 28 rpm/V |
| Torque constant | 0.47 N.m/A |
| Rotor inertia | 223 gcm^2 |
| Number of pole pairs | 14 pairs |
| Working temperature | -20 ~ 80 C |
| Max demagnetize temperature | 120 C |
| Inner diameter of stator | 25 mm |
| Motor size | 49 x 18.5 mm |
| Motor weight | 110 g |
Applications
- Humanoid robots
- Robotic arms and articulated joints
- Exoskeletons and wearable actuators
- Quadruped robots
- Automated guided vehicles (AGV)
- ARU and compact automation modules
Manuals
Installation drawing and 3D model downloads are provided for integration and CAD design:
- WK4315_installation_drawing.pdf
- SteadyWin_WK4315_motor.stp
For ordering or technical support contact [email protected].
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