HobbyStar 550 4-Pole Brushless Sensorless Motor
The HobbyStar 550 4-pole brushless, sensorless motor is based on the same design as our powerhouse 540 sensorless motor, but combines a longer 550 sized and a 5mm shaft for a bulletproof design. The perfect motor when a high-torque, high-performance powerplant is required such as 4x4 short-course trucks. A beautifully machined T6 billet-aluminum housing contains a 4-pole, 12-slot high-torque rotor spinning on High-RPM ABEC5 oversized bearings for a powerful, reliable motor choice for your 1/10 scale vehicle. Comes with motor leads with 4.0mm bullet connectors already installed. Available in a wide variety of KV ratings.
Features:
- 4-pole 12-slot high-torque design
- CNC machined 6061 T6 billet aluminum can
- High-purity copper windings maximize efficiency
- High-RPM ABEC5 oversized bearings
- Precision balanced rotor for smooth operation and maximum RPM
- Super-thin (0.2mm) stator laminations
- Removable/replaceable rotor
- Precision Engineered for maximum energy conversion
Specifications for all variants:
| Product | KV (RPM/Volt) | Max Voltage | Max Amps | Rotor Poles | IO | Resistance | Watts | Max RPM | Length (mm) | Diameter (mm) | Weight (g) | Shaft Diameter (mm) | Shaft Length (mm) | Connectors |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 550/3.5Y | 1950 | 3S | 46A | 4 | 1.2A | 0.0231 | 1200W | 50,000 | 55 | 36 | 195 | 3.2 | 17 | 4.0mm gold |
| 550/5T | 2600 | 3S | 63A | 4 | 1.5A | 0.0146 | 1200W | 50,000 | 55 | 36 | 195 | 3.2 | 17 | 4.0mm gold |
| 550/2Y | 3500 | 3S | 85A | 4 | 2.5A | 0.0089 | 1200W | 50,000 | 55 | 36 | 195 | 3.2 | 17 | 4.0mm gold |
| 550/3.5T | 3800 | 2S | 92A | 4 | 2.8A | 0.0083 | 1200W | 50,000 | 55 | 36 | 195 | 3.2 | 17 | 4.0mm gold |
| 550/3T | 4300 | 2S | 100A | 4 | 3.7A | 0.0058 | 1200W | 50,000 | 55 | 36 | 195 | 3.2 | 17 | 4.0mm gold |
| 550/2Y | 3500 | 3S | 85A | 4 | 2.5A | 0.0089 | 1200W | 50,000 | 55 | 36 | 195 | 5 | 17 | 4.0mm gold |
| 550/3.5T | 3800 | 2S | 92A | 4 | 2.8A | 0.0083 | 1200W | 50,000 | 55 | 36 | 195 | 5 | 17 | 4.0mm gold |
| 550/3T | 4300 | 2S | 100A | 4 | 3.7A | 0.0058 | 1200W | 50,000 | 55 | 36 | 195 | 5 | 17 | 4.0mm gold |