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

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 4S 46A 4 1.2A 0.0231 1200W 50,000 55 36 195 5 17 4.0mm gold
550/3Y 2350 4S 57A 4 1.3A 0.0152 1200W 50,000 55 36 195 5 17 4.0mm gold
550/5T 2600 3S 63A 4 1.5A 0.0146 1200W 50,000 55 36 195 5 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
550 Sensorless Motor Manual  - Click on link to view the file, or right-click (control-click on a Mac) the link and choose “Save Link As...” to save the file to your computer.