With hall sensors,
Sleeve bearing Brushless Motor.
| Gear | |||
|---|---|---|---|
| - | - | - | - |
| Brushless Motor | |
|---|---|
| BMS17-1821B | - |
| - | - |
| Encoder | |
|---|---|
| - | - |
| Driver | |
|---|---|
| SHSD24-01A | - |
| - | - |
With Hall
sensors
sensors
Ball bearing
Nd-Fe-B
magnet
magnet
Specifications
| BMS17-1821B | |
|---|---|
| Rated voltage[V] | 24 |
| No load speed[rpm] | 20,000 |
| No load current[mA] | 72 |
| Stall torque[mNm] | 11.82 |
| Stall current[mA] | 1,171 |
| Output power[W] | 6.20 |
| Max efficiency[%] | 57 |
| Terminal resistance[Ω] | 20.50 |
| Rated torque[mNm] | 1.69 |
| Rated speed[rpm] | 17,143 |
| Rated current[mA] | 229 |
| Friction torque[mNm] | 0.77 |
| Back-EMF constant[mV/rpm] | 1.126 |
| Torque constant[mNm/A] | 10.75 |
| Slope of N-T curve[rpm/mNm] | 1,693 |
| Mechanical time constant[ms] | 12.91 |
| Rotor inertia[gcm2] | 0.65 |
| Max torque[mNm] | 3.94 |
| Inductance[mH] @1kHz | 0.444 |
| Thermal resistance Rth1（coil-housing）[K/W] | TBD |
| Thermal resistance Rth2（housing-ambient）[K/W] | TBD |
| Shaft radial play[mm] | 0.05 |
| Shaft axial play[mm] | 0‐0.1 |
| Max shaft radial load[N] | 5(4.2mm ※1) |
| Max shaft axial load[N] | 1 |
| Max shaft axial load at standstill[N] | 10 |
| Operating temperature[℃] | -20‐+80 |
| Max coil temperature[℃] | 90 |
| Weight[g] | 21 |
※1 measured at ( )mm point from flange
Electrical connections
| BMS17-1821B | ||
|---|---|---|
| #1 | U | Motor winding U |
| #2 | V | Motor winding V |
| #3 | W | Motor winding W |
| #4 | Vdd | Input voltage 3.0V（1.6‐5.5V） |
| #5 | Gnd | GND |
| #6 | Hu | Hall sensor output U |
| #7 | Hv | Hall sensor output V |
| #8 | Hw | Hall sensor output W |
Specification charts
