The NEO Vortex Brushless Motor (REV-21-1652) is a high-power, high-performance, and high-resolution sensored brushless motor from REV Robotics. It features a dockable controller interface that can be mounted directly to the SPARK Flex Motor Controller (REV-11-2159) or a NEO Vortex Solo Adapter (REV-11-2828) allowing control from any brushless motor controller, like the SPARK MAX. Its through-bore rotor is the heart of its unique interchangeable shaft system, facilitating easy integration with various robot mechanisms.
High-resolution encoder
Integrated motor parameter and calibration memory
Through-hex bore with taper for numerous quick-change shafts
No motor wires - reliable and robust docking connections for motor phases and sensor
Check out the for motor curves and a breakdown comparison based on testing with !
The builds on the proven performance of the original NEO, delivering the same high-efficiency brushless power in a refined package designed for easier integration and mounting. With updates to its shaft, encoder connection, and overall profile, NEO 2.0 offers teams more flexibility and streamlined assembly while remaining fully compatible with existing REV ION ecosystem components.
High-performance brushless DC motor designed for competitive robotics
Compatible with all SPARK brushless motor controllers.
Fully integrated hall-effect encoder for closed-loop control
Adopts the SPARK FLEX mounting pattern for direct compatibility with MAXPlanetary and the broader REV ecosystem, aligning flats for a low-profile fit
15T spline shaft for secure power transfer without the need for keys or keyways
Detachable encoder cable for easy replacement and serviceability.
Slimmed 2-inch width profile with exposed outrunner design, allowing mounting within the silhouette of common 2in structural tubing like MAXTube.
Repositioned sensor board for better thermal reliability.
The REV is the initial update on the first brushless motor designed to meet the unique demands of the FIRST Robotics Competition community. NEO V1.1 offers an incredible power density due to its compact size and reduced weight, and it's designed to be a drop-in replacement for CIM-style motors, as well as an easy install with many mounting options. The built-in hall-effect encoder guarantees low-speed torque performance while enabling smart control without additional hardware. NEO V1.1 has been optimized to work with the to deliver incredible performance and feedback.
Drop-in replacement for CIM-style motors
Shielded out-runner construction
Front and rear ball bearings
High-temperature neodymium magnets
New to NEO V1.1
A tapped #10-32 hole on the end of the shaft, allowing teams to retain pinions on the shaft without using external retaining rings
A tapped #10-32 hole on the back housing of the motor, making it no longer necessary to remove the motor housing to press pinions
Additional holes on the front face of the motor for added mounting flexibility
Check out the space for motor curves and a breakdown comparison based on testing with !
The REV is the newest member of 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, allowing it to 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 has a lower thermal mass than a NEO, CIM, or Mini CIM, and thus it may not be ideal for some drivetrain applications.
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 )
Front and rear ball bearings
High-temperature neodymium magnets
Dual sensor, direct contact winding temperature sensing
560KV (RPM per volt)
640 Watts (375 @ 40A)
#10-32 threaded holes on a 2in bolt circle
The motor and motor controller's silhouette fits behind a standard 2in rectangular tube
1/2in hex through-bore rotor compatible with any length hex shaft or application-specific Vortex Shafts:
8mm keyed
Falcon compatible spline
MAXSwerve with integrated key
7-tooth 20DP gear
MAXPlanetary input
Others to be announced
Peak Output Power
640 W
Typical Output Power at 40 A
375 W
Pole Pairs
7
Encoder Resolution with SPARK MAX
42 Counts per rev.
Encoder Resolution with SPARK Flex ‡
7168 Counts per rev.
Drop-in replacement for CIM-style motors
Front and rear ball bearings
High temperature neodymium magnets
Motor temperature sensor
Connectorized motor sensor output for use with the NEO 2.0 Sensor Cable
Diametrically magnetized magnet on the rotor-end of the shaft to support magnetic encoder.
Peak Output Power
540 W
Integrated motor sensor
3-phase hall sensors
Motor temperature sensor
Peak Output Power
406 W
Typical Output Power at 40 A
380 W
Hall-Sensor Encoder Resolution
42 counts per rev.
High-flex silicone motor wires
Integrated motor sensor (3-phase hall sensors)
Motor temperature sensor
Peak Output Power
279 W
Hall-Sensor Encoder Resolution
42 counts per rev.
Nominal Operating Voltage
12 V
Motor Kv
550 Kv
Free Speed
6784 RPM
Free Running Current
3.6 A
Stall Current
211 A
Stall Torque
3.6 Nm
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Pre-production motor testing. Updates with production motor data will be made if necessary.
‡
A firmware update will be required to access higher resolution encoder data.
Nominal Operating Voltage
12 V
Motor Kv
473 Kv
Free Speed`
5676 RPM
Free Running Current
1.8 A
Stall Current
150 A
Stall Torque
3.75 Nm
Nominal Operating Voltage
12 V
Motor Kv
473 Kv
Free Speed`
5676 RPM
Free Running Current
1.8 A
Stall Current
105 A
Stall Torque
2.6 Nm
Nominal Operating 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





These pinions allow your motor to directly interface with the 20DP Gear system.
20DP NEO Pinion Gear - 15T Spline - 10T (REV-21-4014)
20DP NEO Pinion Gear - 15T Spline - 11T (REV-21-4013)
20DP NEO Pinion Gear - 15T Spline - 12T (REV-21-4012)
20DP NEO Pinion Gear - 15T Spline - 13T (REV-21-4011)
20DP NEO Pinion Gear - 15T Spline - 14T (REV-21-4010)
These pinions allow your motor to directly interface with the 15T Spline and other similar spline systems.
These pinions are compatible the NEO V1.1 Brushless Motor and the NEO Vortex Brushless Motor with a Vortex Shaft - 8mm.
These pinions allow your motor to directly interface with the 20DP Gear system.
20DP NEO Pinion Gear - 8mm Keyed - 10T (REV-21-1998)
20DP NEO Pinion Gear - 8mm Keyed - 11T (REV-21-1999)
20DP NEO Pinion Gear - 8mm Keyed - 12T (REV-21-2000)
20DP NEO Pinion Gear - 8mm Keyed - 13T (REV-21-2001)
20DP NEO Pinion Gear - 8mm Keyed - 14T (REV-21-2002)
These pinions allow your motor to directly interface with the #25 Sprocket and Chain system.
#25 NEO Pinion Sprocket - 8mm Keyed - 10T (REV-21-2020)
#25 NEO Pinion Sprocket - 8mm Keyed - 12T (REV-21-3495)
These pinions allow your motor to directly interface with the GT2 3mm Belts and Pulleys system.
GT2 3mm NEO Pinion Pulley - 8mm Keyed - 16T (REV-21-1909)
These pinions are compatible the NEO 550.
This pinions allow your motor to directly interface with the GT2 3mm Belts and Pulleys system.
GT2 3mm 550 Motor Pinion Pulley - 12 Tooth (REV-21-1908)
These pinions allow your motor to directly interface with the 32DP Gear system
32DP 550 Motor Pinion Gear - 12 Tooth - 2 Pack (REV-41-1660-PK2)
This pinions allow your motor to directly interface with the UltraPlanetary Gearbox System.
UltraPlanetary 550 Motor Pinion Gear - 13 Tooth - 2 Pack (REV-41-1608-PK2)