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Motor for RC servo

This is an RC servo motor that has been developed in pursuit of "high responsiveness" and "high output" alongside the evolution of battery technology.

RCサーボモーター

Brushed Motor

Rotor is made of a cup-shaped coreless winding coil. It features low inertia, and high speed response.

Brushless Motor

Stator is a coreless coil winding. No cogging in rotation, designed to run large current input, high output and high heat dissipation.

The characteristics required for RC servo motors are distinct from those of other applications. Therefore, Orbray continues to develop motors specifically for RC servos, separate from its standard lineup. RC servos are used in applications such as RC cars and RC airplanes, where they handle tasks like directional changes. These motors constantly operate under conditions of high current flow and high coil temperatures. To ensure optimal performance in these harsh environments, Orbray's RC servo motors are designed with fast mechanical time constants (from stop to maximum speed) and high output (high torque). These features are crucial factors in determining the superiority of an RC servo. Today, Orbray offers sizes such as φ12x15L, φ17x15L, φ17x18L,and φ17x25L, maintaining a leading market share in the industry. These motors are also applied in various communication robots for servos and are used in a wide range of applications.

Brushed Motor

Products Dia.φ
[mm]
Length
[mm]
Rated
Voltage
[V]
Rated Values No load Stall Mechanical
time constant
[ms]
Max
efficiency
[%]
Torque
[mNm]
Speed
[rpm]
Current
[mA]
Output
[W]
Speed
[rpm]
Current
[mA]
Torque
[mNm]
Current
[mA]
CRS12-1503 12 15.0 7.4 0.61 32,800 381 4.9 37,400 53 4.98 2,739 15.56 74
CRS12-1506 12 15.0 7.4 0.44 23,100 201 2.3 26,700 31 3.29 1,303 16.83 72
CRS12-1508 12 15.0 12 0.59 33,200 234 4.8 37,900 33 4.79 1,651 16.36 74
CRS17-1502 17.4 15.1 7.4 1.24 21,600 475 8.1 23,900 50 12.95 4,479 19.79 80
CRS17-1504 17.4 15.1 7.4 0.76 16,100 234 3.0 18,400 32 6.26 1,693 20.55 74
CRS17-1507 17.4 15.1 12 0.96 19,600 215 4.9 22,100 27 8.48 1,692 20.32 76
CRS17-1801 17.4 18.1 7.4 1.42 23,100 575 10.1 25,500 60 15.08 5,551 14.32 80
CRS17-1802 17.4 18.1 7.4 0.90 19,900 314 5.7 21,800 31 9.98 3,146 15.53 81
CRS17-1803 17.4 18.1 12 1.59 21,200 348 12.7 22,900 28 21.14 4,287 11.24 84
CRS17-2502 17.4 25.0 12 3.04 15,600 492 17.7 16,900 40 39.97 5,976 7.62 84
CRS17-2505 17.4 25.0 12 1.93 11,400 237 7.0 12,600 24 21.30 2,381 8.02 81
CRS17-2507 17.4 25.0 12 1.60 11,200 200 5.0 12,500 23 15.26 1,712 8.77 78

Brushless Motor

Products Dia.φ
[mm]
Length
[mm]
Rated
Voltage
[V]
Rated Values No load Stall Mechanical
time constant
[ms]
Max
efficiency
[%]
Torque
[mNm]
Speed
[rpm]
Current
[mA]
Output
[W]
Speed
[rpm]
Current
[mA]
Torque
[mNm]
Current
[mA]
BRS12-1503 12 15.0 7.4 0.82 22,457 432 4.0 26,200 112 5.75 2,349 4.23 61
BRS12-1506 12 15.0 12 0.88 27,257 342 5.1 31,800 86 6.15 1,875 4.79 62
BRS17-1502 17.4 15.0 7.4 1.73 20,143 754 7.5 23,500 156 12.13 4,338 11.54 66
BRS17-18R8 17.4 18.0 7.4 3.30 21.857 1,472 15.4 25,500 249 23.09 8,810 10.12 69
BRS17-1802 17.4 18.0 7.4 1.50 23,516 706 7.7 27,300 114 10.8 4,390 8.07 70
BRS17-1803 17.4 18.0 12 2.94 21,467 790 13.7 25,000 130 20.83 4,800 11.56 70

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