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Brushed Motor

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

ブラシレスモーター
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

  1. Cup-shaped rotor coil is very light weight and has a small moment of inertia, allowing the motor to start and stop quickly.
  2. Because there is no cogging due to stator-rotor positioning, it features smooth rotation, low noise and low vibration.
  3. 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

Products Geared
Motor
Dia.
[mm]
Length
[mm]
Nominal
Voltage
[V]
Nominal No-load Stall Mechanical
time
constant
[ms]
Max
efficiency
Torque
[mNm]
Speed
[rpm]
Current
[mA]
Output
Power
[W]
Speed
[rpm]
Current
[mA]
Torque
[mNm]
Current
[mA]
CMS07-1707 Planetary 7 17.5 3.7 0.14 17,100 104 0.5 20,200 19 0.94 571 6.79 67
CMS07-1714 Planetary 7 17.5 3 0.10 9,100 54 0.1 11,400 14 0.47 214 7.11 56
CMS07-1726 Planetary 7 17.5 7.4 0.14 18,600 54 0.5 22,100 10 0.84 283 7.48 65
CMS10-1306 Spur
Planetary
10 12.9 3.7 0.13 18,800 106 0.5 22,200 19 0.88 587 12.48 67
CMS10-1321 Spur
Planetary
10 12.9 7.4 0.18 20,700 104 0.6 26,700 30 0.79 357 15.53 50
CMS10-1349 Spur
Planetary
10 12.9 12 0.19 21,600 66 0.6 27,400 18 0.89 246 14.55 53
CMS10-1805 Spur
Planetary
10 18.4 3.7 0.26 11,200 121 0.6 13,200 21 1.75 694 8.24 68
CMS10-1818 Spur
Planetary
10 18.4 7.4 0.24 14,200 68 0.7 16,500 11 1.72 421 9.49 70
CMS10-1835 Spur
Planetary
10 18.4 12 0.31 16,600 70 0.9 20,000 14 1.80 343 10.35 63
CMS12-1506 Spur
Planetary
12 15.0 7.4 0.44 21,900 186 2.2 25,100 27 3.40 1,261 15.39 73
CMS12-1514 Spur
Planetary
12 15.0 12 0.51 23,100 155 2.3 27,500 29 3.24 833 16.70 66
CMS12-2004 Spur
Planetary
12 19.2 7.4 0.43 20,400 150 3.2 22,200 13 5.48 1,744 8.87 83
CMS12-2010 Spur
Planetary
12 19.2 12 0.45 21,200 99 3.5 23,000 8 5.77 1,173 8.8 84
CMS12-3005 Spur
Planetary
12 29.5 7.4 0.78 11,900 163 2.9 13,100 17 8.54 1,614 4.7 81
CMS12-3010 Spur
Planetary
12 29.5 12 0.83 13,700 121 3.7 15,000 12 9.40 1,254 5.57 82
CMS16-2304 Spur
Planetary
16 22.6 7.4 0.89 13,000 209 3.3 14,500 24 8.78 1,849 9.31 79
CMS16-2309 Spur
Planetary
16 23 12 0.94 14,000 145 3.9 15,500 16 9.67 1,340 9.29 80
CMS16-2337 Spur
Planetary
16 22.6 24 0.89 14,900 73 3.8 16,600 8 8.66 643 9.51 79
CMS16-2805 Spur
Planetary
16 27.6 7.4 1.03 8,100 146 2.6 8,900 15 11.05 1,420 5.94 81
CMS16-2812 Spur
Planetary
16 27.6 12 1.08 8,400 97 2.9 9,200 10 12.14 992 5.96 81
CMS16-2852 Spur
Planetary
16 27.6 24 1.02 8,700 48 2.7 9,600 5 10.85 465 6.13 80
CMS16-3302 Spur
Planetary
16 32.6 7.4 1.63 9,400 250 6.9 10,100 17 26.18 3,767 4.43 87
CMS16-3306 Spur
Planetary
16 32.6 12 1.58 9,300 147 6.4 9,900 10 24.71 2,158 4.35 87
CMS16-3316 Spur
Planetary
16 32.6 24 2.36 10,600 132 8.8 11,500 12 28.98 1,482 4.24 83

Brushed Motor 4pole High Torque Model

Products Geared
Motor
Dia.
[mm]
Length
[mm]
Nominal
Voltage
[V]
Nominal No-load Stall Mechanical
time
constant
[ms]
Max
efficiency
Torque
[mNm]
Speed
[rpm]
Current
[mA]
Output
Power
[W]
Speed
[rpm]
Current
[mA]
Torque
[mNm]
Current
[mA]
C4S10-1307 Spur
Planetary
10 13.8 4.7 0.28 13,500 136 0.7 16,300 28 1.66 657 4.90 63
C4S10-1907 Spur
Planetary
10 19.8 7.4 0.45 14,900 119 2.0 16,500 13 4.62 1,104 3.44 80

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