Through Bore Bearings are compatible with the REV DUO System and are used with 5mm Hex Shafts recommend for the DUO Extrusion System to provide a low friction rotating shaft support. These low profile bearings fit in any of the 3mm...

5mm Hex Spacers are compatible with the REV DUO System and accurate way to space gears, sprockets, wheels, and other parts along a 5mm hex shaft. Mix and match various spacer lengths to adjust spacing in increments as small as 1.5mm...

5mm Plastic Hex Bore Gears are compatible with the REV DUO System and fit on a 5mm hex shaft. The hex shaft interface completely eliminates the need for expensive hubs or using potentially unreliable set screws. Gears 45 tooth...

UltraPlanetary Brackets are compatible with the REV DUO System. Each bracket includes holes on an 8mm grid that is compatible with many other building systems. The UltraPlanetary Outside Mounting Bracket (REV-41-1621) is used to...

DUO Plastic #25 Sprockets are compatible with the REV DUO System and fit on a 5mm hex shaft. The hex shaft interface completely eliminates the need for expensive hubs or using potentially unreliable set screws. Sprockets 15 tooth and...

15mm Metal Brackets are compatible with the REV DUO System. Each bracket includes holes on an 8mm grid that is compatible with many other building systems.  The 15mm Metal Bent Core Hex Motor Bracket V2 (REV-41-1433) is used to mount the...

15mm Plastic Motion Brackets are compatible with the REV DUO System. Each bracket features a set of alignment ribs designed to seat the bracket into the extrusion channel increasing joint alignment, strength, and rigidity.  The 15mm Plastic...

15mm Plastic Brackets are compatible with the REV DUO System. Each bracket includes a set of alignment ribs designed to seat the bracket into the extrusion channel increasing joint alignment, strength, and rigidity. The 15mm Plastic Variable Angle...

The Aluminum Servo Horn V2 is compatible with the REV Smart Robot Servo and any other servos with a standard 25T spline. Updates from the original Aluminum Servo Horn include additional tapped M3 Holes for more mounting options, 6 M3 Clearance Holes...

The REV Robotics Control Hub is an affordable all-in-one educational robotics controller.  It provides students all the necessary interfaces for robotics and mechatronics projects with multiple programming language options. The Control Hub is...

Install this switch between your battery and Control Hub or Expansion Hub for convenient on/off control of your robot. We recommend mounting the switch slightly recessed from the robot’s exterior to prevent it from being accidentally toggled by...

This #25 roller chain is designed for use with #25 sprockets. Each package includes 1 connecting link, and additional links are available separately in the #25 Connecting Links – 5 Pack. For custom chain lengths, we recommend the REV #25 Chain...