Brushless Motors

ES040A 40mm Brushless DC Motor

The ES040A series brushless DC motor is a high torque density model brushless motor with a slotless design in a NEMA 17 configuration. It is offered in a 3 motor lengths with continuous torque from 0.085 - 0.134 Nm.

Features:

Speeds up to 8,000 RPM
DC bus voltage up to 120 Vdc
NEMA 17 configuration
Eight standard windings - Special windings available
4 Pole Rare Earth design

Videos:
NEW! Pittman Express Motor Calculator Tutorial
How Motor Curves are Created and How to Use Them
When should a gearbox be used in your DC motor application?

Specifications +

MOTOR DATA	Units	ES040A-1	ES040A-2	ES040A-3
Max DC Terminal Voltage	V	120	120	120
Max Speed (Mechanical)	rpm	8000	8000	8000
Continuous Stall Torque	Nm	0.084	0.10	0.13
Continuous Stall Torque	oz-in	12	14	19
Peak Torque (Maximum)	Nm	0.26	0.31	0.41
Peak Torque (Maximum)	oz-in	36	43	59
Rotor Inertia	kg m2	0.0000045	0.0000057	0.0000061
Rotor Inertia	oz-in-s2	0.00064	0.0008	0.00086
Motor Weight	g	400	450	510
Motor Weight	oz	14	16	18

Dimensional Drawings +

Performance Curves +

ES040A-1 Speed Torque Performance Curve

S.O.A.C. = Safe Operating Area for Continuous duty

ES040A-2 Speed Torque Performance Curve

S.O.A.C. = Safe Operating Area for Continuous duty

ES040A-3 Speed Torque Performance Curve

S.O.A.C. = Safe Operating Area for Continuous duty

NOTE: All values specified at 25°C ambient temperature. Peak values are theoretical and for reference only.

Winding Performance Data +

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ES040A-1	Units
Rated Voltage	V	15.2	19.1	24.0	30.3	38.2	48.0	60.6	76.4
Rated Torque	Nm	0.081	0.081	0.081	0.081	0.081	0.081	0.081	0.081
Rated Torque	oz-in	12	12	12	12	12	12	12	12
Rated Speed	rpm	4810	4790	4790	4800	4790	4790	4800	4790
Rated Current	A	3.7	3.0	2.4	1.9	1.5	1.2	0.94	0.74
Rated Power	W	41	41	41	41	41	41	41	41
No Load Speed	rpm	5800	5760	5790	5790	5760	5790	5800	5760
No Load Current	A	0.082	0.065	0.052	0.041	0.033	0.026	0.021	0.017
Torque Constant	Nm/A	0.0249	0.0315	0.0394	0.0498	0.0630	0.0788	0.0993	0.126
Torque Constant	oz-in/A	3.53	4.46	5.58	7.05	8.93	11.2	14.1	17.9
Voltage Constant	V/krpm	2.61	3.30	4.13	5.21	6.60	8.25	10.4	13.2
Terminal Resistance	Ω	0.75	1.19	1.89	3.00	4.76	7.56	12.0	19.0
Inductance	mH	0.14	0.21	0.34	0.54	0.84	1.34	2.20	3.36
Peak Current	A	12	9.3	7.2	5.7	4.5	3.6	2.9	2.3

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ES040A-2	Units
Rated Voltage	V	19.1	24.0	30.3	38.2	48.0	60.6	76.4	96.0
Rated Torque	Nm	0.097	0.097	0.097	0.097	0.097	0.097	0.097	0.097
Rated Torque	oz-in	14	14	14	14	14	14	14	14
Rated Speed	rpm	5200	5160	5200	5190	5160	5210	5190	5160
Rated Current	A	3.7	2.9	2.3	1.8	1.4	1.2	0.91	0.72
Rated Power	W	53	53	53	53	53	53	53	53
No Load Speed	rpm	5950	5920	5970	5940	5910	5980	5950	5910
No Load Current	A	0.072	0.057	0.046	0.036	0.029	0.023	0.018	0.015
Torque Constant	Nm/A	0.0306	0.0386	0.0483	0.0612	0.0773	0.0964	0.122	0.155
Torque Constant	oz-in/A	4.33	5.46	6.84	8.67	10.9	13.7	17.3	21.9
Voltage Constant	V/krpm	3.20	4.04	5.06	6.41	8.09	10.1	12.8	16.2
Terminal Resistance	Ω	0.82	1.31	2.08	3.30	5.24	8.32	13.2	21.0
Inductance	mH	0.16	0.26	0.41	0.64	1.04	1.60	2.60	4.16
Peak Current	A	11	9	7.2	5.7	4.5	3.6	2.9	2.3

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ES040A-3	Units
Rated Voltage	V	24.0	30.3	38.2	48.0	60.6	76.4	96.0	121
Rated Torque	Nm	0.13	0.13	0.13	0.13	0.13	0.13	0.13	0.13
Rated Torque	oz-in	18	18	18	18	18	18	18	18
Rated Speed	rpm	5250	5250	5270	5240	5230	5270	5250	5240
Rated Current	A	3.8	3.0	2.4	1.9	1.5	1.2	0.95	0.75
Rated Power	W	71	71	72	71	71	72	71	71
No Load Speed	rpm	5840	5840	5870	5830	5810	5860	5840	5830
No Load Current	A	0.062	0.049	0.040	0.031	0.025	0.020	0.016	0.013
Torque Constant	Nm/A	0.0392	0.0495	0.0620	0.0784	0.0993	0.124	0.157	0.198
Torque Constant	oz-in/A	5.54	7.00	8.78	11.1	14.1	17.6	22.2	28.0
Voltage Constant	V/krpm	4.10	5.18	6.49	8.21	10.4	13.0	16.4	20.7
Terminal Resistance	Ω	0.890	1.42	2.26	3.58	5.68	9.04	14.3	22.7
Inductance	mH	0.19	0.30	0.47	0.74	1.20	1.88	2.96	4.80
Peak Current	A	12	9.3	7.5	6.0	4.5	3.6	2.9	2.3

Wiring Diagram +

Color	Signal
Brown	Phase A
Red	Phase B
Orange	Phase C
Grey	Hall 1
Blue	Hall 2
White	Hall 3
Violet	Hall +5 VDC
Black	Hall GND

Encoders +

E30C & E30D Encoder
The E30C & E30D optical incremental encoder was developed for volume OEM precision motion control applications and is the recommended encoder for the ES040A. The E30 offers a wide range of outputs, resolutions and connection solutions in a compact 30 mm by 8 mm size.

Features:

Resolutions from 200 to 2048
TTL Quadrature output
Frequency response to 220 kHz
Low power consumption, 5V @ 20mA max
Locking connector

Specifications

ENCODER DATA	SYMBOL	UNITS	E30C	E30D
Available Resolutions	-	-	200, 250, 256, 400, 500	500, 512, 1000, 1024, 2000, 2048
Output	-	-	2-Channel Quadrature	2-Channel Quadrature with Index
Output Interface	-	-	TTL Compatible	TTL Compatible
Supply Voltage	V_cc	VDC	4.5 to 5.5	4.5 to 5.5
Supply Current	I_cc	mA	20 max	20 max
High Level Output Voltage	V_OH	V	2.4 min	2.4 min
Low Level Output Voltage	V_OL	V	0.4 max	0.4 max
Max. Operating Frequency	f_max	kHz	40 (200-500 CPR)	55 (500-512 CPR)
				110 (1000-1024 CPR)
				220 (2000-2048 CPR)
Operating Temperature	θ_max	°C	-20 to +85	-20 to +85
Encoder Weight (Mass)	W_E	oz	0.2	0.2
Encoder Weight (Mass)	W_E	g	5.6	5.6

Dimensional Drawings

Connection Chart

PIN	COLOR	E30C	E30D	E30C¹	E30D¹
1	Black	Encoder Ground		Encoder Ground
2	White	V_cc		V_cc
3	Green/White	-		-	Index I̅
4	-	-		-
5	Blue/White	-		Channel A̅
6	Blue	Channel A		Channel A
7	Violet	Channel B		Channel B
8	Violet/White	-		Channel B̅
9	Green	-	Index	-	Index
10	Green/Yellow	Motor Ground		Motor Ground
E30C¹ & E30D¹: Optional Differential LD connections shown in grey

Recommended Encoder Data Sheets
E30C/D Encoder Data Sheet pdf

Gearboxes +

PLG42S Gearbox
The PLG42S is a 42 mm planetary gearbox suitable for servo applications where DC Servo brush or BLDC motor technology is specified. The PLG42S provides excellent efficiency in a compact and industry compatible output configuration.

Features:

Maximum Load torque up to 14 Nm
All steel gearing for high torque capacity
Dual ball bearings on output shaft
High efficiency

Specifications

GEAR DATA	UNITS	PLG42S	PLG42S	PLG42S	PLG42S	PLG42S	PLG42S	PLG42S
GEAR DATA	UNITS	4:1	8:1	16:1	25:1	32:1	50:1	64:1
Maximum Load	Nm	3.5	3.5	6	6	6	6	6
Maximum Load	oz-in	496	496	850	850	850	850	850
Weight (Mass)	g	270	270	370	370	370	370	370
Weight (Mass)	oz	9.52	9.52	13.1	13.1	13.1	13.1	13.1
Length (L_G)	mm	47.6	47.6	59.4	59.4	59.4	59.4	59.4
Length (L_G)	in	1.87	1.87	2.34	2.34	2.34	2.34	2.34
Stages	-	1	1	2	2	2	2	2
Ratio	-	4/1	8/1	16/1	25/1	32/1	50/1	64/1
Efficiency	-	0.90	0.90	0.81	0.81	0.81	0.73	0.73
Shaft Rotation	-	CW	CW	CW	CW	CW	CW	CW

GEAR DATA	UNITS	PLG42S	PLG42S	PLG42S	PLG42S	PLG42S	PLG42S	PLG42S
GEAR DATA	UNITS	100:1	128:1	156:1	200:1	256:1	400:1	512:1
Maximum Load	Nm	14	14	14	14	14	14	14
Maximum Load	oz-in	1983	1983	1983	1983	1983	1983	1983
Weight (Mass)	g	880	880	880	880	880	880	880
Weight (Mass)	oz	31.0	31.0	31.0	31.0	31.0	31.0	31.0
Length (L_G)	mm	71.2	71.2	71.2	71.2	71.2	71.2	71.2
Length (L_G)	in	2.80	2.80	2.80	2.80	2.80	2.80	2.80
Stages	-	3	3	3	3	3	3	3
Ratio	-	100/1	128/1	156.25/1	200/1	256/1	400/1	512/1
Efficiency	-	0.73	0.73	0.73	0.73	0.73	0.73	0.73
Shaft Rotation	-	CW	CW	CW	CW	CW	CW	CW

Dimensional Drawings

Combined Length

PLG42S Gearmotor
Motor	Length L_GM mm
Stage	1	2	3
ES040A-1	115.0	126.8	138.6
ES040A-2	122.7	134.5	146.3
ES040A-3	130.3	142.1	153.9

Drives +

Recommended Drives
PBL4850E

Alternate Drives
BGE6010