Brushless Motor BMS17-1821DC Coreless

Sensorless, Sleeve bearing Brushless Motor.

BMS17-1821 Specifications

    Brushless Motor BMS17-1821
1 Nomal voltage 24.0 V
2 No load speed 20000 rpm
3 No load current 72 mA
4 Stall torque 11.8 mNm
5 Stall current 1170 mA
6 Output power 6.2 W
7 Max efficiency 57 %
8 Terminal resistance 20.5 Ω
9 Rated torque 2.36 mNm
10 Rated speed 16005 rpm
11 Rated current 291 mA
12 Friction torque 0.77 mNm
13 Back-EMF constant 1.13 mV/rpm
14 Torque constant 10.75 mNm/A
15 Slope of N-T curve 1693 rpm/mNm
16 Mechanical time constant 16.3 ms
17 Rotor inertia 0.64 gcm2
18 Max torque 5.40 mNm

*BMS17-1821 is a Brushless Motor with a diameter of 17 mm and length of 18 mm.

Mechanical data

19 Shaft raddial play 0.015 mm
20 Shaft axial play 0.2 mm
21 Max shaft radial load 5(4.2mm*) N
22 Max shaft axial load 1 N
23 Max shaft axial load at standstill 10 N
24 Operating temperature -20~80
25 Max coil temperature 90
26 Weight 21 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∼5.5V)
#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.

BMS17-1821

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