M49125
HS49125 E-surfboard and outboard propulsion bldc motor
Brushless DC motor · Ø49×125 · 8-pole · no Hall sensors
HS-FS49125
Brushless DC motor · Ø49×125 · 8-pole · no Hall sensors
IP68Class F13AWG silicone cable, 300 mm
Description
The HS-FS49125 is a Ø49 × 125 mm three-phase brushless DC motor: 8-pole winding, Class F insulation and an IP68 waterproof body, rated 1400 W (2500 W max) at 7800 rpm with 1.9 N·m rated / 3.3 N·m peak torque. Four windings — 106 / 133 / 178 / 266 KV — cover bus voltages of roughly 30–74 V, and the Ø10 shaft with M5 internal thread mounts couplings, pulleys or propellers directly.
Item | Specification (106KV) |
|---|---|
Rated / max power | 1400 W / 2500 W |
Rated / max torque | 1.9 N·m / 3.3 N·m |
Speed | 7800 rpm |
Max voltage / rated current / max current | 74 V DC · 19 A · 34 A |
No-loadat 48 V, datasheet 3-1/3-2 | 5080 ± 3% rpm · ≤ 1.6 A |
Phases / poles | 3-phase / 8-pole |
Operating voltagedatasheet 2-3, at 48 V nominal | 18.5 – 50.2 V DC |
Insulation class | F |
Internal resistanceat 25 ℃ | 190 mΩ ± 5% |
Insulation res. / dielectric | ≥10 MΩ (500 V DC) / AC 500 V·1 s, ≤5 mA |
Working / storage temp. | −10 ~ +60 ℃ / −20 ~ +80 ℃ |
Massexcl. accessories | approx. 1180 g |
Axial / radial clearance | < 0.2 mm / < 0.02 mm |
Outline drawing ( mm)
- ShaftØ10 × 25, M5 × 12 deep, Ø3 cross hole
- Mountfront Ø35 4-M4; rear Ø35 2-M4
- Cable13AWG silicone, 300 mm
Same-frame series · four windings (HS-FS49125)
KV | Max voltage (V) | Rated current (A) | Max current (A) | Power / speed |
|---|---|---|---|---|
106KV | 74 | 19 | 34 | 1400 W / 7800 rpm |
133KV | 57 | 25 | 44 | as above |
178KV | 44 | 32 | 57 | as above |
266KV | 30 | 47 | 84 | as above |
Reliability (acceptance: speed / current ±20%; ±15% after environmental tests)
Life48 V no-load, 1500 hLow temp−20 ± 2 ℃ / 48 hHigh temp60 ± 2 ℃ / 48 hHumidity40 ± 2 ℃ / 85 %RH / 8
Typical applications
- E-surfboard and outboard propulsion
- ROV / AUV propulsion and attitude control
- Robot joints, AGV and industrial automation
* Typical directions for reference; confirm against the final application.