Brushed DC Motors

DC030B 30mm Brushed DC Motor

The DC030B series brush commutated DC motor is a 30 mm diameter unit offered in 3 lengths with continuous output torques of 0.0113 to 0.0184 Nm.

Features:

Speeds up to 10,000 RPM possible
DC bus voltage up to 48 Vdc
Eight standard windings - Special windings available
2 pole stator with ceramic magnets
7 slot skewed armature cogging reduction
Sintered bronze bearings - ball bearings available
Copper graphite brushes - RFI suppression available

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

Specifications +

MOTOR DATA	Units	DC030B-1	DC030B-2	DC030B-3
Max DC Terminal Voltage	V	48	48	48
Max Speed (Mechanical)	rpm	10000	10000	10000
Continuous Stall Torque	Nm	0.011	0.014	0.018
Continuous Stall Torque	oz-in	1.6	2.0	2.6
Peak Torque (Maximum)	Nm	0.045	0.065	0.10
Peak Torque (Maximum)	oz-in	6.4	9.2	15
Rotor Inertia	kg m2	0.00000099	0.0000012	0.0000016
Rotor Inertia	oz-in-s2	0.00014	0.00017	0.00023
Motor Weight	g	130	140	160
Motor Weight	oz	4.7	5.1	5.8

Dimensional Drawings +

Performance Curves +

DC030B-1 Speed Torque Performance Curve

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

DC030B-2 Speed Torque Performance Curve

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

DC030B-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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DC030B-1	Units
Rated Voltage	V	9.55	12.0	15.2	19.1	24.0	30.3	38.2	48.0
Rated Torque	Nm	0.0082	0.0081	0.008	0.0079	0.0080	0.0079	0.0079	0.0079
Rated Torque	oz-in	1.2	1.1	1.1	1.1	1.1	1.1	1.1	1.1
Rated Speed	rpm	5810	5940	6120	6100	6050	6110	6110	6100
Rated Current	A	1.2	0.93	0.74	0.58	0.46	0.36	0.29	0.23
Rated Power	W	5.0	5.0	5.1	5.1	5.0	5.1	5.0	5.0
No Load Speed	rpm	7630	7710	7810	7740	7700	7730	7700	7700
No Load Current	A	0.30	0.25	0.20	0.16	0.13	0.096	0.076	0.061
Torque Constant	Nm/A	0.0110	0.0137	0.0171	0.0217	0.0274	0.0345	0.0436	0.0548
Torque Constant	oz-in/A	1.56	1.93	2.42	3.07	3.88	4.88	6.18	7.76
Voltage Constant	V/krpm	1.15	1.43	1.79	2.27	2.87	3.61	4.57	5.74
Terminal Resistance	Ω	2.01	3.10	4.81	7.61	12.1	19.1	30.3	48.0
Inductance	mH	1.00	1.57	2.45	3.93	6.27	9.92	15.88	25.07
Peak Current	A	4.8	3.9	3.2	2.5	2.0	1.6	1.3	1.0

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DC030B-2	Units
Rated Voltage	V	9.55	12.0	15.2	19.1	24.0	30.3	38.2	48.0
Rated Torque	Nm	0.010	0.010	0.0099	0.0099	0.0098	0.0098	0.0097	0.0098
Rated Torque	oz-in	1.5	1.4	1.4	1.4	1.4	1.4	1.4	1.4
Rated Speed	rpm	6520	6590	6790	6890	6840	6870	6890	6840
Rated Current	A	1.5	1.2	0.90	0.72	0.57	0.45	0.35	0.28
Rated Power	W	7.0	7.0	7.0	7.1	7.0	7.0	7.0	7.0
No Load Speed	rpm	8100	8060	8120	8230	8130	8150	8140	8100
No Load Current	A	0.34	0.27	0.21	0.17	0.14	0.11	0.084	0.066
Torque Constant	Nm/A	0.0105	0.0133	0.0167	0.0207	0.0264	0.0332	0.0419	0.0530
Torque Constant	oz-in/A	1.49	1.88	2.37	2.93	3.73	4.71	5.94	7.51
Voltage Constant	V/krpm	1.10	1.39	1.75	2.17	2.76	3.48	4.39	5.55
Terminal Resistance	Ω	1.40	2.17	3.34	5.20	8.24	13.1	20.6	32.9
Inductance	mH	0.73	1.17	1.82	2.85	4.57	7.29	11.55	18.47
Peak Current	A	6.8	5.5	4.6	3.7	2.9	2.3	1.9	1.5

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DC030B-3	Units
Rated Voltage	V	9.55	12.0	15.2	19.1	24.0	30.3	38.2	48.0
Rated Torque	Nm	0.013	0.012	0.012	0.012	0.011	0.011	0.011	0.011
Rated Torque	oz-in	1.8	1.7	1.7	1.6	1.6	1.6	1.6	1.6
Rated Speed	rpm	8500	8850	9020	9080	9170	9350	9310	9260
Rated Current	A	2.1	1.7	1.3	0.99	0.79	0.63	0.49	0.39
Rated Power	W	11	11	11	11	11	11	11	11
No Load Speed	rpm	9830	9960	9930	9900	9940	10000	10000	9970
No Load Current	A	0.45	0.36	0.29	0.23	0.18	0.15	0.12	0.090
Torque Constant	Nm/A	0.00876	0.0109	0.0138	0.0175	0.0219	0.0272	0.0346	0.0436
Torque Constant	oz-in/A	1.24	1.54	1.96	2.47	3.10	3.85	4.90	6.18
Voltage Constant	V/krpm	0.917	1.14	1.45	1.83	2.29	2.85	3.62	4.57
Terminal Resistance	Ω	0.790	1.17	1.80	2.79	4.33	6.75	10.7	17.0
Inductance	mH	0.37	0.58	0.94	1.50	2.34	3.65	5.86	9.35
Peak Current	A	12	10	8.4	6.8	5.5	4.5	3.6	2.8

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 DC030B. 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 CPR
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

Gearboxes +

G30A Gearbox
The G30A is a 30mm planetary gearbox suitable for servo applications where DC Servo brush or BLDC motor technology is specified. The G30A provides maximum efficiency, minimum backlash, has a smaller mechanical footprint and is available with round and square mounting endbell configurations.

Features:

Sintered metal gears for high torque capacity
Sintered metal output bearing

Specifications

GEAR DATA	UNITS	G30A 4:1	G30A 6:1	G30A 16:1	G30A 24:1	G30A 36:1	G30A 64:1	G30A 96:1
Maximum Load	Nm	2.47	2.47	3.53	3.53	3.53	6.5	6.5
Maximum Load	oz-in	350	350	500	500	500	920	920
Weight (Mass)	g	110.6	110.6	124.7	124.7	124.7	138.9	138.9
Weight (Mass)	oz	3.9	3.9	4.4	4.4	4.4	4.9	4.9
Length (L_G)	mm	32.64	32.64	38.48	38.48	38.48	44.32	44.32
Length (L_G)	in	1.285	1.285	1.515	1.515	1.515	1.745	1.745
Stages	-	1	1	2	2	2	3	3
Ratio	-	4/1	6/1	16/1	24/1	36/1	64/1	96/1
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	G30A 144:1	G30A 216:1	G30A 256:1	G30A 384:1	G30A 576:1	G30A 864:1	G30A 1296:1
Maximum Load	Nm	6.5	6.5	8.83	8.83	8.83	8.83	8.83
Maximum Load	oz-in	920	920	1250	1250	1250	1250	1250
Weight (Mass)	g	138.9	138.9	155.9	155.9	155.9	155.9	155.9
Weight (Mass)	oz	4.9	4.9	5.5	5.5	5.5	5.5	5.5
Length (L_G)	mm	44.32	44.32	50.17	50.17	50.17	50.17	50.17
Length (L_G)	in	1.745	1.745	1.975	1.975	1.975	1.975	1.975
Stages	-	3	3	4	4	4	4	4
Ratio	-	144/1	216/1	256/1	384/1	576/1	864/1	1296/1
Efficiency	-	0.73	0.73	0.66	0.66	0.66	0.66	0.66
Shaft Rotation	-	CW	CW	CW	CW	CW	CW	CW

Dimensional Drawings

Combined Length

G30A Gearmotor
Motor	Length L_GMmm
Stage	1	2	3	4
DC030B-1	85.2	91.1	96.9	102.7
DC030B-2	88.4	94.2	100.1	105.9
DC030B-3	94.7	100.6	106.4	112.3

G35A Gearbox
The G35A is an economical 35 mm offset spur gearbox suitable for lower torque applications. The wide range of sintered steel gears combinations especially complement brushed motors when speed reduction in required. The G35A is also available in high torque or wide faced gears for increased output loads.

Features:

Maximum Load torque up to 0.7 Nm in the standard model
Load increased to 1.13 Nm in the high torque and up to 1.24 in wide face versions
Standard bronze bearings

Options:

Special lubrication for extreme conditions
Ball bearings for high radial loads
Delrin gears for noise reduction

G35A Standard Specifications

GEAR DATA	UNITS	G35A 6.3:1	G35A 9.9:1	G35A 19.5:1	G35A 30.9:1	G35A 60.5:1	G35A 95.9:1
Maximum Load	Nm	0.706	0.706	0.706	0.706	0.706	0.706
Maximum Load	oz-in	100	100	100	100	100	100
Weight (Mass)	g	66.6	70.6	70.6	74.3	74.3	78.2
Weight (Mass)	oz	2.4	2.5	2.5	2.6	2.6	2.76
Length (L_G)	mm	24.6	24.6	24.6	24.6	24.6	24.6
Length (L_G)	in	0.97	0.97	0.97	0.97	0.97	0.968
Stages	-	1	1	1	1	1	1
Ratio	-	6.3:1	9.9:1	19.5:1	30.9:1	60.5:1	95.9:1
Efficiency	-	0.81	0.73	0.73	0.66	0.66	0.57
Shaft Rotation	-	CW	CCW	CCW	CW	CW	CCW

GEAR DATA	UNITS	G35A 187.7:1	G35A 297.5:1	G35A 581.8:1	G35A 922.3:1	G35A 1803.6:1
Maximum Load	Nm	0.706	0.706	0.706	0.706	0.706
Maximum Load	oz-in	100	100	100	100	100
Weight (Mass)	g	78.2	88.2	88.2	92.1	92.1
Weight (Mass)	oz	2.76	3.11	3.11	3.25	3.25
Length (L_G)	mm	24.6	29.6	29.6	29.6	29.6
Length (L_G)	in	0.968	1.164	1.164	1.164	1.164
Stages	-	1	2	2	2	2
Ratio	-	187.7:1	297.5:1	581.8:1	922.3:1	1803.6:1
Efficiency	-	0.59	0.53	0.53	0.48	0.48
Shaft Rotation	-	CCW	CW	CW	CCW	CCW

G35A High Torque Specifications

GEAR DATA	UNITS	G35A-HT 9.9:1	G35A-HT 19.5:1	G35A-HT 30.9:1	G35A-HT 60.5:1	G35A-HT 95.9:1
Maximum Load	Nm	1.130	1.130	1.130	1.130	1.130
Maximum Load	oz-in	160	160	160	160	160
Weight (Mass)	g	70.6	70.6	74.3	74.3	78.2
Weight (Mass)	oz	2.49	2.49	2.62	2.62	2.76
Length (L_G)	mm	24.6	24.6	24.6	24.6	24.6
Length (L_G)	in	0.968	0.968	0.968	0.968	0.968
Stages	-	1	1	1	1	1
Ratio	-	9.9:1	19.5:1	30.9:1	60.5:1	95.9:1
Efficiency	-	0.73	0.73	0.66	0.66	0.59
Shaft Rotation	-	CCW	CCW	CW	CW	CCW

GEAR DATA	UNITS	G35A-HT 187.7:1	G35A-HT 297.5:1	G35A-HT 581.8:1	G35A-HT 922.3:1	G35A-HT 1803.6:1
Maximum Load	Nm	1.130	1.130	1.130	1.130	1.130
Maximum Load	oz-in	160	160	160	160	160
Weight (Mass)	g	78.2	88.2	88.2	92.1	92.1
Weight (Mass)	oz	2.76	3.11	3.11	3.25	3.25
Length (L_G)	mm	24.6	29.6	29.6	29.6	29.6
Length (L_G)	in	0.968	1.164	1.164	1.164	1.164
Stages	-	1	2	2	2	2
Ratio	-	187.7:1	297.5:1	581.8:1	922.3:1	1803.6:1
Efficiency	-	0.59	0.53	0.53	0.48	0.48
Shaft Rotation	-	CCW	CW	CW	CCW	CCW

G35A Wide Face Specifications

GEAR DATA	UNITS	G35A-WF 9.9:1	G35A-WF 19.5:1	G35A-WF 30.9:1	G35A-WF 60.5:1	G35A-WF 95.9:1
Maximum Load	Nm	1.236	1.236	1.236	1.236	1.236
Maximum Load	oz-in	175	175	175	175	175
Weight (Mass)	g	70.6	70.6	74.3	74.3	78.2
Weight (Mass)	oz	2.49	2.49	2.62	2.62	2.76
Length (L_G)	mm	24.6	24.6	24.6	24.6	24.6
Length (L_G)	in	0.968	0.968	0.968	0.968	0.968
Stages	-	1	1	1	1	1
Ratio	-	9.9:1	19.5:1	30.9:1	60.5:1	95.9:1
Efficiency	-	0.73	0.73	0.66	0.66	0.59
Shaft Rotation	-	CCW	CCW	CW	CW	CCW

GEAR DATA	UNITS	G35A-WF 187.7:1	G35A-WF 297.5:1	G35A-WF 581.8:1	G35A-WF 922.3:1	G35A-WF 1803.6:1
Maximum Load	Nm	1.236	1.236	1.236	1.236	1.236
Maximum Load	oz-in	175	175	175	175	175
Weight (Mass)	g	78.2	88.2	88.2	92.1	92.1
Weight (Mass)	oz	2.76	3.11	3.11	3.25	3.25
Length (L_G)	mm	24.6	29.6	29.6	29.6	29.6
Length (L_G)	in	0.968	1.164	1.164	1.164	1.164
Stages	-	1	2	2	2	2
Ratio	-	187.7:1	297.5:1	581.8:1	922.3:1	1803.6:1
Efficiency	-	0.59	0.53	0.53	0.48	0.48
Shaft Rotation	-	CCW	CW	CW	CCW	CCW

Dimensional Drawings

G35A Gearmotor (Standard, High Torque, Wide Face) Combined Length
Motor	Length L_GMmm
Stage	1	2
DC030B-1	75.6	80.4
DC030B-2	78.8	83.6
DC030B-3	85.2	90.0

Brakes +

B30A Brake
The B30A power off, fail safe holding brake is designed to hold a load in position when power is removed from the motor and brake. This compact 30mm brake has a holding torque of 0.113 Nm (1 Lb-in). The B30A is typically mounted to the motor rear.

Features:

Holding torque of 0.113 Nm
Factory-set Air Gap
Low profile mounting plate
Rigid molded friction disk

Salient Characteristics

BRAKE DATA	UNITS	12V	19V	24V	30V
Applied Voltage	Vdc	12	19	24	30
Holding Torque	Nm	0.113	0.113	0.113	0.113
Holding Torque	lb-in	1.0	1.0	1.0	1.0
Current	A	0.33	0.21	0.17	0.13
Resistance	Ohms	36	90	134	219
Inertia	Kg-m²	1.0E-07	1.0E-07	1.0E-07	1.0E-07
Inertia	oz-in-sec²	1.4E-05	1.4E-05	1.4E-05	1.4E-05
Weight (Mass)	Kg	0.0625	0.0625	0.0625	0.0625
Weight (Mass)	Lbs	0.14	0.14	0.14	0.14

Dimensional Drawings

Brushed DC Motors

DC030B 30mm Brushed DC Motor

Specifications +

Dimensional Drawings +

Performance Curves +

Winding Performance Data +

Encoders +

Gearboxes +

Brakes +