SteadyWin WK2205 Robot Motor — Frameless Brushless DC Motor 12V | 5630 rpm Max | Dia 26.3 x 9 mm | WK2205 / WK2205CH

Overview

SteadyWin WK2205 Robot Motor is a shaft brushless DC frameless motor offered in two variants (WK2205 and WK2205CH). Both variants share a 12 V nominal voltage and a maximum speed of 5630 rpm while differing in size, nominal/stall torque and rotor inertia. The design is compact for integration into space-constrained robotic systems where a frameless motor form factor and low rotor inertia are required.

Key rated values: nominal voltage 12 V; nominal current 0.66 A; nominal speed 792 rpm; speed constant 469 rpm/V. Variant-specific values are listed in the Specifications table below.

Key Features

Frameless brushless architecture

Shaft brushless DC frameless motor form factor for direct integration with custom rotors and mechanical assemblies.

Compact footprint

Small motor diameters and low mass support space-limited installations: WK2205 (Dia 26.3 x 9 mm, 14 g) and WK2205CH (Dia 25.3 x 6.2 mm, 12 g).

High speed capability

Maximum speed 5630 rpm suitable for high-speed actuation and precision motion when paired with appropriate drive electronics.

Low rotor inertia

Rotor inertia values (9 gcm^2 for WK2205; 5 gcm^2 for WK2205CH) reduce load on control loops and improve dynamic response.

Electrical characteristics

Nominal current 0.66 A and interphase resistance 7.4 Ohm for consistent drive requirements; torque constant and speed constant provided for control tuning.

For pre-sales inquiries and technical support contact support@rcdrone.top.

Specifications

Applications

• Humanoid robots
• Robotic arms
• Exoskeletons
• Quadruped robots
• AGV vehicles
• ARU robots

Manuals

• WK2205_installation_drawing.pdf
• WK2205CH_installation_drawing.pdf
• SteadyWin_WK2205_motor.stp
• SteadyWin_WK2205CH_motor.stp