Hubs & Adapters

This Servo Gear Adapter is a 15 Tooth Plastic Gear that attaches to any 25T output servo including the Smart Robot Servo. Warning: Gears from other building systems may have a very similar tooth profile but are not an exact match. It may be possible to...

This Servo Shaft Adapter makes it possible to drive a 5mm hex shaft with any 25T output servo including the Smart Robot Servo. The adapter attaches to the servo spline like any common servo horn and accepts a 5mm hex shaft on the opposite end. This...

The UltraPlanetary 1/2in Hex Adapter is designed to face mount to the UltraPlanetary gearbox and provide a convenient 1/2in hex output shaft that is commonly used in the FIRST Robotics Competition. The recommended hardware for mounting the...

The Locking Motion Hub places a motion pattern on any 5mm hex shaft. Use this to connect metal sprockets to 5mm hex shaft or add strength to wheels, gears, and plastic sprockets through the REV Motion Pattern without the need of a shaft collar...

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...

The Universal Hex Adapter V2 is a steel hub that allows teams to quickly and easily adapt their existing parts to work with 5mm hex.  Specifications Material: Sintered Steel Hole Pattern: Four M3 tapped holes on a 0.630in (16mm) diameter circle -...

The 5mm Hex to 8mm Round Bearing Insert, when paired with the 8mm x 12mm x 3.5mm Flanged Bearing (REV-49-1559), allows you to support 5mm hex shaft with a robust low friction bearing. It includes a pair of locking tabs that secure the insert to the...