Brushless Motor BMS12-15DC Coreless

Sensorless, Sleeve bearing Brushless Motor.

BMS12-15 Specifications

    Brushless Motor BMS12-1503 Brushless Motor BMS12-1506
1 Nomal voltage 7.4 12.0 V
2 No load speed 33700 33200 rpm
3 No load current 112 96 mA
4 Stall torque 5.66 5.79 mNm
5 Stall current 2920 1860 mA
6 Output power 5.0 5.0 W
7 Max efficiency 65 60 %
8 Terminal resistance 2.53 6.44 Ω
9 Rated torque 0.93 1.08 mNm
10 Rated speed 28200 27000 rpm
11 Rated current 571 424 mA
12 Friction torque 0.23 0.31 mNm
13 Back-EMF constant 0.211 0.343 mV/rpm
14 Torque constant 2.01 3.27 mNm/A
15 Slope of N-T curve 5960 5738 rpm/mNm
16 Mechanical time constant 5.53 5.32 ms
17 Rotor inertia 0.08 0.08 gcm2
18 Max torque 2.83 2.89 mNm

*BMS12-15 is a Brushless Motor with a diameter of 12 mm and length of 15 mm.

Mechanical data

19 Shaft raddial play 0.015 mm
20 Shaft axial play 0.23 mm
21 Max shaft radial load 0.5(3.9mm*) N
22 Max shaft axial load 0.15 N
23 Max shaft axial load at standstill 7.8 N
24 Operating temperature -20~80
25 Max coil temperature 90
26 Weight 8.8 g

*measured at () mm from flange

Environmental data

#1

Lw

Motor winding U
#2 Lu Motor winding V
#3 Hu Motor winding W
#4 Hv Input voltage 3.0V(1.6∼5.6V)
#5 Hw GND
#6 Lv Hall sensor output U
#7 Gnd Hall sensor output V
#8 Vdd Hall sensor output W

Sensored version available as option.

BMS12-15

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