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BRS12-1503/BRS12-1506

Brushless Motor for RC Servo

Precious metal brush,
Sleeve bearings RC Servo motor

Please provide corresponding pinion gear or specify pinion paramenters for sample making.

Specifications

  BRS12-1503 BRS12-1506
Rated voltage[V] 7.4 12
No load speed[rpm] 26,200 31,800
No load current[mA] 112 86
Stall torque[mNm] 5.75 6.15
Stall current[mA] 2,349 1,875
Output power[W] 4.0 5.1
Max efficiency[%] 61 62
Terminal resistance[Ω] 3.15 6.40
Rated torque[mNm] 0.82 0.88
Rated speed[rpm] 22,457 27,257
Rated current[mA] 432 342
Friction torque[mNm] 0.29 0.30
Back-EMF constant[mV/rpm] 0.269 0.360
Torque constant[mNm/A] 2.57 3.44
Slope of N-T curve[rpm/mNm] 4,559 5,170
Mechanical time constant[ms] 4.23 4.79
Rotor inertia[gcm2] 0.08 0.08
Max torque[mNm] 1.92 2.05
Inductance[mH] @1kHz TBD 0.150
Thermal resistance Rth1(coil-housing)[K/W] TBD TBD
Thermal resistance Rth2(housing-ambient)[K/W] TBD TBD
Shaft raddial play[mm] 0.05
Shaft axial play[mm] 0.02‐0.2
Max shaft radial load[N] 0.5(1.6mm ※1)
Max shaft axial load[N] 0.15
Max shaft axial load at standstill[N] 7.8
Operating temperature[℃] -20‐+80
Max coil temperature[℃] 90
Weight[g] 8.5 ※2

※1 measured at ( )mm point from flange
※2 Weight without pinion

Electrical connections

BRS12-1503 / BRS12-1506
#1 U Motor winding U
#2 Hw Hall sensor output W
#3 Vdd Input voltage 3.0V(1.6‐5.5V)
#4 V Motor winding V
#5 Hv Hall sensor output V
#6 Gnd GND
#7 W Motor winding W
#8 Hu Hall sensor output U

Specification charts

特性図 brs12-15

Pinion options

  Module Number of teeth Material
Pinion A 0.25 10 SUS303
Pinion B 0.25 10 C3604
Pinion C 0.25 11 C3604
Pinion D 0.25 18 C3604
Pinion E 0.30 10 SUS303
Pinion F 0.30 10 C3604
Pinion G 0.30 12 SUS303

If you require specifications other than those provided above, please provide the pinion that fits the shaft diameter or notify us of pinion specifications in advance.

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