5mm Hex Shafts are compatible with the REV DUO System. The hex shaft interface completely eliminates the need for expensive hubs or using potentially unreliable set screws. REV shafts are made out of strong, corrosion resistant stainless steel...

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...

This shaft collar is compatible with the DUO Build System and is used to prevent gears, sprockets, wheels, and other parts from sliding out of place on a 5mm hex shaft. Shaft collars can also be used to prevent the shaft itself from sliding out of its...

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...

The M3 Standoff Bundle is perfect for raising one assembly above another or as linkages. Standoffs are also commonly used with REV C Channel to properly space the channel in order to allow chains or belts to fit inside. Use this bundle to...

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...

Add this switch between your battery and Expansion Hub to have convenient on/off control of your robot. We recommend mounting the switch slightly recessed from the outside of your robot so that it's not accidentally turned off by another robot during a...

The Core Hex Motor is a FTC legal motor that features a 90 degree orientation and a female output shaft for maximum flexibility and ease of use. Insert any REV standard 5mm hex shafts into or through the Core Hex motor to create custom length...

DUO Grip Wheels are wider than our standard wheels, giving teams more traction while still being lightweight and robust. This wheel is compatible with 5mm hex shaft, which completely eliminates the need for expensive hubs or using potentially unreliable...

Universal Hex Adapter (REV-41-1833) also available as an alternative. This part is a replacement for the discontinued Hex Hub Adapter (REV-41-1146). Expand your team's building options without giving up the products that you already own. This sintered...

When designing chain or belt driven system, the ability to adjust tension in the system is ideal. Using the Tensioning Bushing with REV DUO U Channel allows users to fine tune their system to find the optimum amount of tension for any application...

M3 standoffs are compatible with the REV DUO System and are perfect for raising one assembly above another or as linkages when paired with male ball joint rod ends (REV-49-1561). Specifications Material: 6063 Black Anodized Aluminum Thread...

M3 Hex Cap Screws are compatible with the REV DUO System. Length measured from tip to underside of hex cap. Specifications Material: Corrosion Resistant Zinc Plated Steel Thread Pitch: M3 x 0.5 Head Dimensions: 5.5mm Hex Width, 2mm Height...