Allied Motion's Quantum (QB) series of housed brushless servo motors are designed for use in precision servo applications that require a standard NEMA 17, 23, 34, or 56 frame size motor. The QB023 series are standard NEMA 23 interface motors electromechanically optimized for high output power, high torque density, and low cogging torque. Their high power density ratio allows a smaller size motor to be used in many applications, saving space and weight. Quantum motors are also available as frameless versions for direct machine integration. Features & Benefits Standard NEMA 23 frame size with four stack lengths each covers a wide range of servo applications Rated stall torque from 51 oz-in (0.36 Nm) up to 182 oz-in (1.28 Nm) Standard winding voltage ratings of 24, 40, and 130 VDC High strength NdFeB magnets maximize torque production Integrated Hall sensors for commutation Computer optimized design for maximum power and torque density ensures the most compact and efficient design possible Options Encoder and resolver feedback options for compatibility with virtually all servo drives and motion controllers Sealed versions up to IP65 for operation in harsh environments Custom winding options to provide higher operating ranges of speed and voltage (up to 300 VDC)

Standard NEMA 23 frame size high performance brushless DC servo motor Continuous power rated up to 528 W, and stall torque rated from 0.36 up to 1.28 Nm cont. Standard winding voltages of 24, 40, and 130 VDC

Model No.		QB02300			QB02301			QB02302
Motor Constants
Stall Torque (continuous)	oz-in	51			96			138
	Nm	0.36			0.68			0.98
Demag Torque (±25%)	oz-in	558			1117			1676
	Nm	3.94			7.9			11.8
Motor Constant	oz-in/√W	10.8			17.2			22.0
	Nm/√W	0.076			0.121			0.155
Elect. Time Constant	ms	0.94			1.14			1.22
Mech. Time Constant	ms	1.30			1.03			0.94
Thermal Resistance	°C/W	2.79			2.00			1.59
Viscous Damping	oz-in/RPM	3.5E-4			7.5E-4			1.1E-3
	Nm/RPM	2.5E-6			5.3E-6			7.9E-6
Cogging Torque (max.)	oz-in	2.6			4.1			5.1
	Nm	0.018			0.029			0.036
Mechanical Constants
Motor Inertia	oz-in-s2	1.1E-3			2.2E-3			3.3E-3
	kg-m2	7.9E-6			1.5E-5			2.3E-5
Motor Weight	oz	24.1			32.6			41.2
	kg	0.68			0.92			1.17
Poles	-	6
Winding Constants
Winding	-	A	B	C	A	B	C	A	B	C
Design Voltage	V	24	40	130	24	40	130	24	40	130
Peak Torque	oz-in	516	558	558	658	849	1106	1080	1396	1659
	Nm	3.64	3.94	3.94	4.65	6.00	7.81	7.63	9.86	11.72
Peak Current	A	95	81	32	61	62	40	100	104	56
Torque Constant (±10%)	oz-in/A	5.4	6.8	17.1	10.7	13.5	27.1	10.7	13.4	29.4
	Nm/A	0.038	0.048	0.121	0.076	0.096	0.192	0.076	0.095	0.208
No Load Speed	RPM	5994	7888	10254	3014	3981	6470	3014	4035	5860
	rad/s	627	826	1073	315	416	677	315	422	624
BEMF Constant (±10%)	V/kRPM	4.0	5.0	12.6	7.6	10.0	20.0	7.9	9.9	21.8
	V/rad/s	0.038	0.048	0.121	0.079	0.096	0.192	0.076	0.095	0.208
Terminal Resistance (±12%)	Ohms	0.25	0.40	2.53	0.39	0.63	2.55	0.24	0.38	2.00
Terminal Inductance (±30%)	mH	0.23	0.38	2.37	0.45	0.72	2.88	0.29	0.46	2.22

Model No.		QB02303
Motor Constants
Stall Torque (continuous)	oz-in	181
	Nm	1.28
Demag Torque (±25%)	oz-in	2212
	Nm	15.6
Motor Constant	oz-in/√W	25.7
	Nm/√W	0.181
Elect. Time Constant	ms	1.25
Mech. Time Constant	ms	0.92
Thermal Resistance	°C/W	1.26
Viscous Damping	oz-in/RPM	1.5E-3
	Nm/RPM	1.1E-5
Cogging Torque (max.)	oz-in	6.3
	Nm	0.044
Mechanical Constants
Motor Inertia	oz-in-s2	4.5E-3
	kg-m2	3.0E-5
Motor Weight	oz	50.1
	kg	1.42
Poles	-	6
Winding Constants
Winding	-	A	B	C
Design Voltage	V	24	40	130
Peak Torque	oz-in	1107	1465	2212
	Nm	7.82	10.34	15.62
Peak Current	A	77	81	70
Torque Constant (±10%)	oz-in/A	14.3	17.8	31.4
	Nm/A	0.101	0.126	0.222
No Load Speed	RPM	2269	3026	5588
	rad/s	237	316	585
BEMF Constant (±10%)	V/kRPM	10.5	13.2	23.2
	V/rad/s	0.101	0.126	0.222
Terminal Resistance (±12%)	Ohms	0.31	0.48	1.61
Terminal Inductance (±30%)	mH	0.39	0.60	1.87

in (mm)

Options
B	=	Holding brake
C	=	Connector
E	=	Encoder
G	=	Gearbox
I	=	IP65 rating (IP44 is std.)
R	=	Resolver
I	=	IP65 protection level
Z	=	RoHS compliant

NOTE:
To OPEN a document in a new browser window, click the document's Type text.
To SAVE (download) a document without opening it, right-click the document's Type text, and select "Save Target As..." (IE) or "Save Link As..." (FireFox).

Item No.	Description	Type	Size
N/A	Quantum Series Brushless Housed Servo Motor Specifications Brochure	PDF	733 KB
QB02300	Quantum Series Brushless Servo Motor Dimension Drawing	DXF	81 KB
TO-QB202	Technology Overview: Quantum Gen II Brushless Servo Motors	PDF	192 kB