NEO 550

NEO 550 Motor Overview

The REV NEO 550 (REV-21-1651) Brushless Motor is the newest member in the NEO family of brushless motors. Its output power and small size are specifically designed to make NEO 550 the perfect motor for intakes and other non-drivetrain robot mechanisms. Mounting holes and pilot match a standard 550 series motor, making it natively mount to many existing off-the-shelf gearboxes.

The REV NEO 550 Brushless Motor runs a 0.12in output shaft which, when combined with its 550-style mounting features, allows for easy installation in many off-the-shelf gearboxes.

Its small size and weight make it easy to put power where you need it, whether that is on intakes, end-effectors, or other weight-sensitive mechanisms. However, keep in mind that this motor does have a lower thermal mass than a NEO, CIM or Mini CIM, and thus it may not be ideal for some drivetrain applications.

Wiring Connections

Connecting the NEO 550 Brushless motors is fairly straightforward. Follow the guide at Wiring the Spark Max with the NEO Brushless Motor, and don't forget to connect your encoder sensor wire; the motor will not spin without it!

CAUTION: Improperly wiring the connectors can cause severe motor damage and is not covered by the warranty. DO NOT connect the motor directly to the battery.


  • Mounting features match other 550 series DC motors

  • Out-runner construction (i.e. Rotor housing is compatible with REV Motion Pattern; you can mount metal Gears, Sprockets, and Pulleys)

  • Front and rear ball bearings

  • High-temperature neodymium magnets

  • High-flex silicone motor wires

  • Integrated motor sensor (3-phase hall sensors)

  • Motor temperature sensor


Nominal Voltage

12 V

Motor Kv

917 Kv

Free Speed

11000 RPM

Free Running Current

1.4 A

Stall Current

100 A

Stall Torque

0.97 Nm

Peak Output Power

279 W

Motor Wire Gauge

16 AWG

Hall-Sensor Encoder Resolution

42 counts per rev.

Output Shaft Diameter

0.125in (3.175mm)

Output Shaft Length

0.267in (7mm)

Output Pilot

0.512in (13mm)

Body Length

1.752in (44.5mm)

Body Diameter

1.378in (35mm)


0.142 kgs (0.313 lbs)

Check out the NEO 550 Motor Data Sheet for additional specifications and charted motor curves. Also, please pay special attention to the NEO 550 Motor Locked Rotor Testing and please make sure you have read and understand how to set the SPARK MAX Smart Current Limit.

The NEO 550 has been optimized to work with some of the above products, like the SPARK MAX Motor Controller (REV-11-2158) and the 550 Motor Pinions (REV-41-1608) to deliver best-in-class performance and feedback.

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