16mm Slotless Brushless DC Motor

16mm Slotless Brushless DC Motor – Product Overview

The 16mm slotless brushless dc motor delivers an excellent balance between size, torque density, and controllability, making it a popular choice for compact industrial automation and robotic systems.

Compared with smaller frames, 16mm slotless brushless dc motor supports higher continuous torque while retaining the core advantages of slotless technology.

coreless gear motor

Key Features

High torque-to-size ratio
Zero cogging torque for precision motion
Compact form factor suitable for automation
Stable thermal performance
Flexible electrical configurations
Long service life for industrial duty

Typical Applications of 16mm Slotless Brushless DC Motor

16mm slotless brushless dc motor is widely adopted in compact industrial and robotic subsystems.

Application scenarios include:

Small robotic joints and end-effectors
Precision linear actuators
Compact industrial automation modules
Smart tooling and assembly systems

Application Highlights

Smooth motion under dynamic loads
Reduced mechanical wear due to low vibration
Servo-like performance without gearbox backlash
Suitable for long-term continuous operation

Technical Specifications of 16mm Slotless Brushless DC Motor

The following technical data applies to the 16mm slotless brushless DC motor.

Electrical Parameters

Rated voltage options: 12-48V.
Rated speed: 32300-51300rpm(customized)
Rated Torque: 3.2-14.6mN.m(customized)
Output power: 10.8-73.5W(customized)

Optional Configurations

Hall sensors or encoder feedback
Customized shaft or connector types
Cable or terminal variations

Slotless motor.pdf

Motor Characteristics
Motor part number		16ZWWC24-1SZ	16ZWWC40					16ZWWC56-5SZ
Pole pairs	-	1	1	1	1	1	1	1
Terminal resistance, Phase-Phase	Ω	2.408	0.63	1.31	1.85	3.15	0.3196	0.4971
Terminal inductance, Phase-Phase	mH	0.067	0.033	0.045	0.096	0.2	0.014	0.033
Winding connection method	-	Delta connection	Star connection	Star connection	Star connection	Star connection	Delta connection	Star connection
Insulation class	-	B	B	B	B	B	B	B
Duty type	-	S2	S2	S2	S2	S2	S2	S2
Feedback method	-	Hall sensor	Hall sensor	Hall sensor	Hall sensor	Hall sensor	Hall sensor	Hall sensor
Commutation angle	-	120°	120°	120°	120°	120°	120°	120°
Insulation strength (Withstand voltage)	-		500VAC/1KHz/1mA/1s
Insulation resistance	-		100MΩ/500VDC
Weight	g	26.5	47	47	47	47	47	63
Rated voltage	V	12	18	24	36	48	12	24
Rated power	W	10.8	33	39	39	39	27.26	73.5
Rated torque	mN·m	3.2	7.4	7.4	7.5	7.4	7.5	14.6
Rated speed	RPM	32300	44000	51300	50000	50000	34700	48100
Rated current	A	1.21	2.19	1.96	1.32	0.95	3	3.81
No load speed	RPM	44000	50000	58000	56000	56000	40000	54000
No load current	A	0.35	0.31	0.22	0.15	0.12	0.4	0.5
Motor efficiency	%	75.5	85	84	82.4	84.92	81.4	87.1
Noise (Ambient noise 20dB, test distance 1m)	dB	<50	<50	<50	<50	<50	<50	<50
Thermal Resistance (No-load)	K/W	-	1.22	1.33	1.47	1.07	-	-
Thermal Time Constant (No-load)	S	-	420	450	480	390	-	-
Ambient temperature	℃	22.3	22.3	22.3	22.3	22.3	22.3	22.3
Max winding temperature (No-load)	℃	-	63	75	80	63.8	-	-
Torque constant	mN·m/A	2.6	3.38	3.78	5.66	7.75	2.86	4.24
Back-EMF constant - peak value	V/Krpm	0.38	0.50	0.56	0.84	1.15	0.42	0.62
Back-EMF constant - effective value	V/Krpm	0.27	0.35	0.40	0.59	0.81	0.3	0.44
Peak torque	mN·m	9	96.65	69.21	110.19	118.13	53	140
Peak current	A	4.9	29	18	19	15	19	39
Rotor inertia	g·cm²	0.3	0.583	0.583	0.583	0.583	0.58	0.8
Mechanical time constant	ms	10.69	3.21	5.35	3.36	3.06	2.28	2.21
End bell	-		Stainless steel
Bearing	-		Deep groove ball bearing
Magnet	-		Sinter NdFeB
Rotation shaft	-		Carbon steel

Dimension Drawing of 16mm slotless brushless motor 16ZWWC24/16ZWWC40/16ZWWC56

16mm slotless brushless dc motor drawing

Performance Curve of 16mm slotless brushless motor 16ZWWC24

16mm slotless brushless dc motor 24 performance curve

Performance Curve of 16mm slotless brushless motor 16ZWWC40

16mm slotless brushless dc motor 40 performance curve

Performance Curve of 16mm slotless brushless motor 16ZWWC56

16mm slotless brushless dc motor 56 performance curve

FAQ –16mm Slotless Brushless DC Motor

Q1: Is 16mm slotless brushless dc motor suitable for industrial automation?

Yes. 16mm slotless brushless dc motor is designed for compact industrial systems.

Q2: Can 16mm slotless brushless dc motor replace small servo motors?

Yes, especially in space-constrained applications.

Q3: Does slotless design reduce vibration?

Yes, significantly compared to slotted motors.

Q4: Is customization available for torque and speed?

Yes, via winding and electrical design.

Q5: Can 16mm slotless brushless dc motor run continuously?

Yes, with proper thermal design.

Q6: Is OEM branding supported?

Yes, full OEM and ODM services are available.

16mm Slotless Brushless DC Motor for Precision Automation