Allied Motion's Quantum (QB) series of frameless brushless servo motors are specifically designed for direct axis integration in machine applications where a housed motor is undesirable. The QB series are brushless kit motors (rotor & stator sets) designed to deliver high performance and servo precision at minimal cost. They can be easily customized to the exact specs required, and high speed QS versions are available with improved efficiency at high speeds. The QB series are 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 housed versions in standard NEMA sizes for use as traditional servo motors in typical servo applications. Common applications of the frameless QB series include high speed pumps and fans, laboratory automation, cash counter/handling devices, and semiconductor manufacturing. Features & Benefits Frameless brushless servo motors designed to be compact and cost-effective Rated stall torque from 11.5 oz-in (0.08 Nm) up to 10.40 ft-lb (14.10 Nm) Standard winding voltage ratings of 24, 40, 130, and 300 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 Custom winding options to provide higher operating ranges of speed and voltage (up to 300 VDC) Alternate rotor through-bore size Thermistor or other temperature-sensing options

Cost-effective frameless brushless servo motor Rated power up to 4.5 kW cont., and stall torque rated up to 10.40 Nm cont. Standard winding voltages of 24, 40, and 130 VDC (300 VDC for the QB56)

Model No.		QB01700			QB01701			QB01702
Motor Constants
Stall Torque (continuous)	oz-in	11.5			21.6			33.5
	Nm	0.08			0.15			0.23
Demag Torque (±25%)	oz-in	92			169			264
	Nm	0.65			1.19			1.87
Motor Constant	oz-in/√W	3.20			4.99			6.85
	Nm/√W	0.023			0.035			0.048
Elect. Time Constant	ms	0.380			0.520			0.590
Mech. Time Constant	ms	2.030			1.670			1.330
Thermal Resistance	°C/W	4.7			3.29			2.58
Viscous Damping	oz-in/RPM	7.5E-5			1.5E-4			2.3E-4
	Nm/RPM	5.3E-5			1.1E-6			1.6E-6
Cogging Torque (max.)	oz-in	1.0			1.5			1.8
	Nm	7.0E-3			1.1E-2			1.3E-2
Mechanical Constants
Motor Inertia	oz-in-s2	1.4E-4			2.9E-4			4.4E-4
	kg-m2	1.0E-7			2.0E-6			3.1E-6
Motor Weight	oz	2.5			5.0			7.4
	kg	0.07			0.14			0.21
Max Rotor ID	in	0.4720
	mm	12.0
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	92	92	92	163	169	169	219	264	264
	Nm	0.65	0.65	0.65	1.15	1.19	1.19	1.55	1.87	1.87
Peak Current	A	36	24	15	44	35	14	42	41	16
Torque Constant (±10%)	oz-in/A	2.54	3.84	6.04	3.65	4.79	11.35	5.13	6.32	16.20
	Nm/A	0.018	0.027	0.043	0.026	0.034	0.080	0.036	0.045	0.114
No Load Speed	RPM	12775	14068	29095	8874	11287	15488	6318	8555	10851
	rad/s	1337	1473	3046	829	1182	1621	661	895	1136
BEMF Constant (±10%)	V/kRPM	1.88	2.84	4.46	2.70	3.54	8.39	3.79	4.67	11.98
	V/rad/s	0.018	0.027	0.043	0.026	0.034	0.080	0.036	0.045	0.114
Terminal Resistance (±12%)	Ohms	0.63	1.51	3.76	0.530	1.050	6.440	0.56	0.86	5.62
Terminal Inductance (±30%)	mH	0.24	0.55	1.36	0.28	0.48	2.68	0.330	0.5	3.29

Model No.		QB01703
Motor Constants
Stall Torque (continuous)	oz-in	43.5
	Nm	0.30
Demag Torque (±25%)	oz-in	341
	Nm	2.41
Motor Constant	oz-in/√W	8.11
	Nm/√W	0.057
Elect. Time Constant	ms	0.65
Mech. Time Constant	ms	1.26
Thermal Resistance	°C/W	2.14
Viscous Damping	oz-in/RPM	3.1E-4
	Nm/RPM	2.2E-6
Cogging Torque (max.)	oz-in	2.2
	Nm	1.6E-2
Mechanical Constants
Motor Inertia	oz-in-s2	5.8E-4
	kg-m2	4.1E-6
Motor Weight	oz	9.7
	kg	0.27
Max Rotor ID	in	0.4720
	mm	12.0
Poles	-	6
Winding Constants
Winding	-	A	B	C
Design Voltage	V	24	40	130
Peak Torque	oz-in	258	341	341
	Nm	1.82	2.41	2.41
Peak Current	A	42	49	20
Torque Constant (±10%)	oz-in/A	6.21	6.88	16.83
	Nm/A	0.043	0.049	0.119
No Load Speed	RPM	5302	7855	10444
	rad/s	555	822	1093
BEMF Constant (±10%)	V/kRPM	4.52	5.09	12.44
	V/rad/s	0.043	0.049	0.119
Terminal Resistance (±12%)	Ohms	0.56	0.72	4.43
Terminal Inductance (±30%)	mH	0.37	0.47	2.81

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	1.0E-3			2.1E-3			3.2E-3
	kg-m2	7.6E-6			1.5E-5			2.3E-5
Motor Weight	oz	8.9			17.1			25.3
	kg	0.25			0.48			0.71
Max Rotor ID	in	0.7080
	mm	18.0
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	4.3E-3
	kg-m2	3.0E-5
Motor Weight	oz	33.4
	kg	0.95
Max Rotor ID	in	0.7080
	mm	18.0
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

Model No.		QB03400			QB03401			QB03402
Motor Constants
Stall Torque (continuous)	oz-in	115			222			328
	Nm	0.81			1.57			2.32
Demag Torque (±25%)	oz-in	761			1538			2307
	Nm	5.38			10.8			16.2
Motor Constant	oz-in/√W	20.1			34.7			44.7
	Nm/√W	0.142			0.245			0.316
Elect. Time Constant	ms	1.89			2.57			2.78
Mech. Time Constant	ms	2.59			1.74			1.57
Thermal Resistance	°C/W	1.87			1.51			1.15
Viscous Damping	oz-in/RPM	7.3E-4			1.5E-3			2.3E-3
	Nm/RPM	5.1E-6			1.0E-5			1.6E-5
Cogging Torque (max.)	oz-in	3.5			5.0			6.5
	Nm	0.025			0.035			0.046
Mechanical Constants
Motor Inertia	oz-in-s2	7.4E-3			1.5E-2			2.2E-2
	kg-m2	5.2E-5			1.0E-4			1.5E-4
Motor Weight	oz	21.4			41.3			61.2
	kg	0.60			1.17			1.73
Max Rotor ID	in	1.2590
	mm	32.0
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	708	761	761	1535	1538	1538	2090	2307	2307
	Nm	5.00	5.38	5.38	10.8	10.8	10.8	14.7	16.2	16.2
Peak Current	A	51	49	34	81	65	40	91	81	51
Torque Constant (±10%)	oz-in/A	13.7	15.4	21.8	18.8	23.5	37.6	22.9	28.2	45.0
	Nm/A	0.098	0.109	0.154	0.133	0.166	0.266	0.162	0.200	0.318
No Load Speed	RPM	2367	3499	8037	1722	2286	4665	1413	1913	3802
	rad/s	247	366	841	180	240	488	148	200	408
BEMF Constant (±10%)	V/kRPM	10.1	11.4	16.1	13.9	17.4	27.8	16.9	20.9	33.3
	V/rad/s	0.097	0.109	0.154	0.133	0.166	0.266	0.162	0.200	0.318
Terminal Resistance (±12%)	Ohms	0.46	0.58	1.17	0.29	0.46	1.24	0.26	0.40	1.03
Terminal Inductance (±30%)	mH	0.88	1.11	2.24	0.75	1.18	3.03	0.73	1.11	2.82

Model No.		QB03403
Motor Constants
Stall Torque (continuous)	oz-in	429
	Nm	3.03
Demag Torque (±25%)	oz-in	2961
	Nm	20.9
Motor Constant	oz-in/√W	52.8
	Nm/√W	0.369
Elect. Time Constant	ms	2.37
Mech. Time Constant	ms	1.53
Thermal Resistance	°C/W	0.92
Viscous Damping	oz-in/RPM	3.2E-3
	Nm/RPM	2.2E-5
Cogging Torque (max.)	oz-in	8.0
	Nm	0.056
Mechanical Constants
Motor Inertia	oz-in-s2	3.0E-2
	kg-m2	2.1E-4
Motor Weight	oz	81.0
	kg	2.29
Max Rotor ID	in	1.2590
	mm	32.0
Poles	-	6
Winding Constants
Winding	-	A	B	C
Design Voltage	V	24	40	130
Peak Torque	oz-in	2516	2961	2961
	Nm	17.7	21.1	21.1
Peak Current	A	96	100	74
Torque Constant (±10%)	oz-in/A	26.0	29.4	39.6
	Nm/A	0.184	0.208	0.280
No Load Speed	RPM	1244	1835	4430
	rad/s	130	192	464
BEMF Constant (±10%)	V/kRPM	19.2	21.7	29.3
	V/rad/s	0.184	0.208	0.280
Terminal Resistance (±12%)	Ohms	0.24	0.31	0.56
Terminal Inductance (±30%)	mH	0.59	0.75	1.36

Model No.		QB05600			QB05601			QB05602
Motor Constants
Stall Torque (continuous)	ft-lb	3.17			5.92			8.19
	Nm	4.29			8.03			11.10
Demag Torque (±25%)	ft-lb	22.3			43.7			62.8
	Nm	30.3			57.2			85.1
Motor Constant	ft-lb/√W	0.42			0.65			0.809
	Nm/√W	0.56			0.88			1.09
Elect. Time Constant	ms	5.09			5.49			6.59
Mech. Time Constant	ms	1.13			0.93			0.92
Thermal Resistance	°C/W	1.09			0.75			0.60
Viscous Damping	ft-lb/RPM	1.7E-5			3.6E-5			5.5E-5
	Nm/RPM	2.3E-5			4.9E-5			7.5E-5
Cogging Torque (max.)	ft-lb	0.057			0.099			0.141
	Nm	0.078			0.134			0.191
Mechanical Constants
Motor Inertia	ft-lb-s2	2.7E-4			5.4E-4			8.1E-4
	kg-m2	3.6E-4			7.3E-4			1.1E-3
Motor Weight	lb	3.79			8.81			12.8
	kg	1.72			3.99			5.84
Max Rotor ID	in	2.000
	mm	50.8
Poles	-	8
Winding Constants
Winding	-	A	B	C	A	B	C	A	B	C
Design Voltage	V	40	130	300	40	130	300	40	130	300
Peak Torque	ft-lb	22.3			43.7			62.8
	Nm	30.3			59.2			85.1
Peak Current	A	224	121	62	409	204	93	498	263	124
Torque Constant (±10%)	ft-lb/A	0.100	0.184	0.358	0.107	0.214	0.467	0.126	0.238	0.504
	Nm/A	0.135	0.250	0.486	0.145	0.290	0.633	0.171	0.323	0.683
No Load Speed	RPM	2830	4971	5896	2634	4281	4528	2235	3847	4192
	rad/s	296	520	617	275	448	474	234	402	439
BEMF Constant (±10%)	V/kRPM	14.3	26.1	50.8	15.1	30.3	66.2	17.8	33.8	71.5
	V/rad/s	0.135	0.250	0.486	0.145	0.290	0.633	0.171	0.323	0.683
Terminal Resistance (±12%)	Ohms	0.056	0.196	0.761	0.027	0.107	0.511	0.024	0.085	0.400
Terminal Inductance (±30%)	mH	0.287	0.981	3.715	0.146	0.586	2.788	0.160	0.570	2.556

Model No.		QB05603
Motor Constants
Stall Torque (continuous)	ft-lb	10.40
	Nm	14.10
Demag Torque (±25%)	ft-lb	83.7
	Nm	113.5
Motor Constant	ft-lb/√W	0.957
	Nm/√W	1.29
Elect. Time Constant	ms	6.83
Mech. Time Constant	ms	0.88
Thermal Resistance	°C/W	0.52
Viscous Damping	ft-lb/RPM	7.4E-5
	Nm/RPM	1.0E-4
Cogging Torque (max.)	ft-lb	0.182
	Nm	0.247
Mechanical Constants
Motor Inertia	ft-lb-s2	1.1E-3
	kg-m2	1.5E-3
Motor Weight	lb	17.0
	kg	7.76
Max Rotor ID	in	2.000
	mm	50.8
Poles	-	8
Winding Constants
Winding	-	A	B	C
Design Voltage	V	40	130	300
Peak Torque	ft-lb	83.7
	Nm	113.5
Peak Current	A	640	299	154
Torque Constant (±10%)	ft-lb/A	0.131	0.280	0.541
	Nm/A	0.177	0.380	0.734
No Load Speed	RPM	2156	3270	3903
	rad/s	225	342	408
BEMF Constant (±10%)	V/kRPM	18.5	39.7	76.8
	V/rad/s	0.177	0.380	0.734
Terminal Resistance (±12%)	Ohms	0.019	0.088	0.324
Terminal Inductance (±30%)	mH	0.127	0.585	2.187

QB017 Series
QB023 Series
QB034 Series
QB056 Series

     

Options
C	=	Connector
Z	=	RoHS compliant

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Item no.	Description	Type	Size
N/A	Quantum Frameless Brushless Motors - Specifications	PDF	1284 kB