Gears, Chain, & Belts

The FTC Starter Kit V3.1 is the ultimate starting point for your team’s FIRST Tech Challenge season. Built based on feedback directly from teams, this kit is packed with essential REV DUO components you need to design, prototype, and compete...

The 550 Motor Pinions are used for transferring power from a 550 class motor, like the HD Hex Motor or NEO 550, to a mechanism. The Helical 550 Motor Pinion with 12 teeth is used exclusively with 20:1 and 40:1 Hex gearboxes ONLY...

Metal sprockets designed to work in high-load applications with #25 chain. This sprocket requires a hub like REV-41-1719. Specifications Chain Size: #25 Material: 6061 Aluminum Documentation SprocketGuide BuildingGuide Product...

GT2 3mm Pitch Belts are compatible with both the REV ION System and the REV DUO System. These belts go hand in hand with GT2 timing pulleys. Use belts and pulleys in tight to fit areas where adjustment is difficult. Specifications Pitch: 3mm Width: 9mm...

The #25 Chain Turnbuckle is compatible with both the REV ION System and REV DUO System. It is designed to adjust the length of a #25 Chain by replacing a few links in a run and also allows the user to tension the chain by adjusting the...

M3 Spacers are compatible with the REV DUO System and accurate way to space gears, sprockets, wheels, and other parts on a M3 bolt.  

DUO Round Belt Pulleys are compatible with the REV DUO System and are perfect for your conveyor and intake mechanisms when combined with Polyurethane Hollow Round Belting. Documentation DUO Build System Guide Product Options ...

5mm Metal Hex Bore Gears are compatible with the REV DUO System and work with REV 5mm hex shafts in high-load applications. REV metal gears are NOT compatible with REV plastic gears. All REV metal gears are narrower than plastic...

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...

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...

The 550 Motor Pinions are used for transferring power from a 550 class motor, like the HD Hex Motor or NEO 550, to a mechanism. These pinions come in four different types. The 32DP pinion gear is compatible with 32DP gears,the UltraPlanetary Pinion is...

The FTC Timing Belt and Pulley Bundle contains an assortment of components needed for a pulley-based motion transmission system. Timing Belts and Pulleys are lighter, more compact, and more efficient at transferring motion than chain and sprockets...