Name: 4 mm Brushless Coreless Motor
Brand: ZHAOWEI
SKU: MC0408-01
Rating: 4.8 (1306 reviews)

4 mm Brushless Coreless Motor

Model：MC0408-01

The MC0408-01 brushless DC slotless motor is an ideal mini-actuation solution that enables you to downsize your application without compromising on performance or reliability. And allows for more power in a compact envelope.

Diameter:

4 mm

Rated Voltage:

5 V

Stall Torque:

0.07 mNm

Stall Current:

0.095 A

Constant torque:

0.6 mNm/A

Speed Constant:

16667 rpm/V

Max. efficiency (%):

Product Highlights

Transform coil design with advanced multi-layer winding, departing from the industry norm of single-layer winding. Attain international-level motor performance after coil cup assembly.
Elevate magnet steel design with high-performance sintered NdFeB, emphasizing iron coercivity. Decrease outer diameter, reducing rotational inertia and enhancing air cooling through increased electromagnetic air gap.
Revolutionize stator cores for optimal performance: boost volume, secure a vacuum-tight surface, and directly bond wires to enhance heat dissipation and insulation reliability.

Applications

Medical Device
Precision Robotics
Aerospace and Aviation
Automotive Systems
Industrial Automation

Customization Available

Planetary gearboxes
Spur gearboxes
Encoders
Controllers

Product Parameters

Motor Data
Nominal voltage(V)	5
No load speed(rpm)	58,000
No load current (A)	0.045
Nominal speed (rpm)	41,900
Nominal torque (max. continuous torque) (mNm)	0.02
Nominal current (max. continuous current) (A)	0.095
Stall torque(mNm)	0.07
Stall current(A)	0.19
Max. efficiency (%)	20

Characteristics
Terminal resistance phase to phase (Ω)	26.4
Terminal inductance phase to phase (mH)	0.07
Torque constant (mNm/A)	0.6
Speed constant (rpm/V)	16,667
Speed/torque gradient (rpm/mNm)	789,337
Mechanical time constant (ms)	4.2
Rotor inertia (gcm2)	0.0006

Specifications

Thermal data
Thermal resistance housing-ambient	-
Thermal resistance winding-housing	-
Thermal time constant winding	-
Thermal time constant motor	-
Ambient temperature	-20~+100°C
Max. winding temperature	+125°C

Mechanical data (preloaded ball bearings)
Max. speed	100,000 rpm
Axial play at axial load	< 0.15 N 0 mm
	> 0.15 N max. 0.3 mm
Radial play	preloaded
Max. axial load (dynamic)	0.1 N
Max. force for press fits (static)	10 N

Product Application

Surgical robots

Harnessing robotic technology, proficient medical practitioners execute intricate surgical procedures with unparalleled precision, flexibility, and control, surpassing the capabilities of conventional techniques.

Medical pumps

From bedside infusions to insulin delivery and on-the-go infusions for healthcare professionals in the field, the versatility of medical pumps spans various applications, delivering fluids into a patient's body. This includes a wide array of substances such as nutrients, medications, hormones, or contrast materials, catering to diverse medical needs.

Exoskeletons & Assistive Devices

Unlike powered orthotics or exoskeletons, assistive devices like exoskeletons are crafted to enhance mobility and support individuals with various physical challenges. These innovative solutions serve individuals who may face mobility issues due to injuries, medical conditions, or congenital disorders, providing them with the support they need for improved independence and quality of life.

Surgical tools

While technology, including robotics, is increasingly prominent in the medical arena, many diagnostic procedures still rely on manual intervention. Powered diagnostic tools play a pivotal role in a wide range of medical examinations and procedures, ensuring precision and efficiency in delivering accurate diagnostic results.

High performance micro gear motor

4 mm Brushless Coreless Motor