Brushed Motor

Coreless moving coil is light weight, superior in quick starting and stopping (high speed response).

Efficiency	High efficiency and no iron loss
Responsiveness	Very low inertia and able to start/stop quickly
Life	Low inductance and long life
Control	Linear characteristics
Cogging	No magnetic cogging
Electromagnetic noise	Low electromagnetic interference

Brushed coreless motor does not have an iron core, and consists of a cup-shaped core as rotor and a permanent magnet inside the rotor as stator. Brushed coreless motor features the following: Coreless motor features the following:

Features
Brushed Motor Standard Model
Motor Selection Guide

Features

Cup-shaped rotor coil is very light weight and has a small moment of inertia, allowing the motor to start and stop quickly.
Because there is no cogging due to stator-rotor positioning, it features smooth rotation, low noise and low vibration.
Motor can be made in compact sizes because it is made only of rare earth magnet, coil and rotor.

For the reasons mentioned above, our brushed coreless motor is used in many applications that require high precision, high speed response, as well as compactness and high efficiency.

Issues & challenges in Brushed Motor

The primary factors affecting the lifespan of brushed motors are abrasion due to rotational contact of the brush and commutator, and electric corrosion during polarity switching. While precious metal contact material minimizes the electric corrosion, physical abrasion remains an issue. Changing the brush material to carbon-based can prevent the mechanical wearing, but at the same time, this can increase electric spark noise. In general, brushed motors are not suitable for power motors because they can't accept large flow of electric current.
Orbray presents brushed coreless motors that address these issues equally.

Brushed Motor Standard Model

Brushed Motor PDF Catalog

Products	Geared Motor	Dia. [mm]	Length [mm]	Nomi nal Vol tage [V]	Nominal				No-load		Stall		Mecha nical time constant [ms]	Max. effici ency	CAD download
					Torque [mNm]	Speed [rpm]	Current [mA]	Output Power [W]	Speed [rpm]	Current [mA]	Torque [mNm]	Current [mA]			Encoder
					Torque [mNm]	Speed [rpm]	Current [mA]	Output Power [W]	Speed [rpm]	Current [mA]	Torque [mNm]	Current [mA]			with	no
CMS07-1707	Planetary	7	17	3.7	0.14	17,100	104	0.5	20,200	19	0.94	571	6.8	67	2D 3D	2D 3D
CMS07-1726	Planetary	7	17	7.4	0.14	18,600	54	0.5	22,100	10	0.84	283	7.5	65	2D 3D	2D 3D
CMS10-1306	Spur Planetary	10	13	3.7	0.14	17,900	103	0.5	21,100	18	0.92	587	11.3	68	2D 3D	2D 3D
CMS10-1321	Spur Planetary	10	13	7.4	0.14	20,900	61	0.6	24,500	10	0.96	352	11.8	68	2D 3D	2D 3D
CMS10-1346	Spur Planetary	10	13	12.0	0.14	24,500	45	0.7	28,700	8	1.0	264	12.3	69	2D 3D	2D 3D
CMS10-1805	Spur Planetary	10	18	3.7	0.27	10,400	116	0.6	12,200	19	1.89	689	7.0	69	2D 3D	2D 3D
CMS10-1818	Spur Planetary	10	18	7.4	0.27	12,500	70	0.7	14,600	12	1.91	418	7.3	69	2D 3D	2D 3D
CMS10-1834	Spur Planetary	10	18	12.0	0.29	15,500	56	1.0	18,000	9	2.16	357	7.5	71	2D 3D	2D 3D
CMS12-1506	Spur Planetary	12	15	7.4	0.44	21,900	186	2.2	25,100	27	3.40	1261	15.4	73	2D 3D	2D 3D
CMS12-1514	Spur Planetary	12	15	12.0	0.43	23,700	123	2.4	27,200	18	3.36	833	15.9	73	2D 3D	2D 3D
CMS12-2004	Spur Planetary	12	20	7.4	0.44	20,400	150	3.2	22,200	13	5.48	1744	8.9	83	2D 3D	2D 3D
CMS12-2010	Spur Planetary	12	20	12.0	0.45	20,400	99	3.5	23,000	8	5.77	1173	8.8	82	2D 3D	2D 3D
CMS12-3005	Spur Planetary	12	30	7.4	0.79	11,800	162	2.9	13,000	16	8.55	1605	5.5	81	2D 3D	2D 3D
CMS12-3010	Spur Planetary	12	30	12.0	0.83	13,700	121	3.7	15,000	12	9.40	1254	5.6	82	2D 3D	2D 3D
CMS16-2304	Spur Planetary	16	23	7.4	0.89	13,000	209	3.3	14,500	24	8.78	1849	9.3	79	2D 3D	2D 3D
CMS16-2309	Spur Planetary	16	23	12.0	0.94	14,000	145	3.9	15,500	16	9.67	1340	9.3	80	2D 3D	2D 3D
CMS16-2337	Spur Planetary	16	23	24.0	0.89	14,900	73	3.8	16,600	8	8.66	643	9.5	79	2D 3D	2D 3D
CMS16-2805	Spur Planetary	16	28	7.4	1.03	8,100	146	2.6	8,900	15	11.05	1420	5.9	81	2D 3D	2D 3D
CMS16-2812	Spur Planetary	16	28	12.0	1.08	8,400	97	2.9	9,200	10	12.14	992	6.0	81	2D 3D	2D 3D
CMS16-2852	Spur Planetary	16	28	24.0	1.02	8,700	48	2.7	9,600	5	10.85	465	6.1	80	2D 3D	2D 3D
CMS16-3302	Spur Planetary	16	33	7.4	1.63	9,500	250	6.9	10,100	17	26.13	3761	4.4	87	2D 3D	2D 3D
CMS16-3306	Spur Planetary	16	33	12.0	1.58	9,300	147	6.4	9,900	10	24.66	2155	4.4	87	2D 3D	2D 3D
CMS16-3317	Spur Planetary	16	33	24.0	1.69	10,900	92	8.5	11,600	6	28.09	1432	4.4	88	2D 3D	2D 3D

Brushed Motor 4pole High Torque Model

Products	Geared Motor	Dia. [mm]	Length [mm]	Nominal Voltage [V]	Nominal				No-load		Stall		Mecha nical time constant [ms]	Max. effici ency	CAD download
					Torque [mNm]	Speed [rpm]	Current [mA]	Output Power [W]	Speed [rpm]	Current [mA]	Torque [mNm]	Current [mA]			Encoder
					Torque [mNm]	Speed [rpm]	Current [mA]	Output Power [W]	Speed [rpm]	Current [mA]	Torque [mNm]	Current [mA]			with	no
C4S10-1307	Spur Planetary	10	13	4.7	0.28	13500	136	0.7	16300	28	1.66	657	4.9	63	2D 3D	2D 3D
C4S10-1907	Spur Planetary	10	19	7.4	0.45	14900	120	2	16500	1100	4.62	1100	TBD	79.6	2D 3D	2D 3D