Shop All

This gearbox is the same one used on our HD Hex Motor 40:1 Spur Gearbox featuring our 5mm HEX output shaft! This gearbox can be installed on any 550 series motors (like the NeveRest motors from AndyMark) giving you the convenience and...

These v-groove bearing pulleys fit on an M3 x 16mm Hex Cap Screw and can be mounted directly onto extrusion. Use with 15mm Linear Motion Kits and a high tensile strength no-stretch string, such as kevlar string or spectra fishing line, to create an...

Single Strand #25 roller chain for use with #25 sprockets. Use a master link (connecting link) for #25 chain connect two ends of chain to create a loop. Specifications Material: Steel Size: #25 Pitch: 0.25in

Master link (connecting link) for #25 chain. Use a master link to connect two ends of chain to create a loop. Specifications Material: Steel Size: #25 Pitch: 0.25in CAD & Drawings REV-41-1366 STEP File REV-41-1366 Onshape

Zinc plated steel nuts compatible with all REV M3 screws or bolts. Contains a nylon insert which increases grip on screw, reducing the chance of the nut loosening over time. Does NOT fit in the channel of our REV DUO 15mm Extrusion System...

Small electronics sized 5.5mm Nut Driver with rubberised grip fits M3 hex cap bolts and nuts. Specifications Socket Depth: 15.8mm Dimensions: 16.2cm x 2cm x 2cm (6.38in x 0.79in x 0.79in) Weight: 33g (1.16oz)

This 10-cell, 12V 3000mAh battery has a low profile configuration to make it easier to mount on a robot. The Slim Battery pack is wired with an XT30 male connector and an inline 20A replaceable ATM fuse. XT30 to Tamiya Adapter no longer automatically...

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 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...

The 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...

The End Cap Bearing is used with the 5mm hex shaft recommended for the DUO Build System 15mm Extrusion to provide a low friction rotating shaft support. This bearing is intended to seat in any of the plastic REV DUO brackets with the 9mm ID bearing seat...

This lap corner bracket is used with the DUO Build System 15mm Extrusion. These plastic brackets have webbing to strengthen the corner and includes a set of alignment ribs on one side designed to seat the bracket into the extrusion channel increasing...

This 90 degree inside corner bracket is used with the DUO Build System 15mm Extrusion. These plastic brackets have webbing to strengthen the corner and includes a set of alignment ribs designed to seat the bracket into the extrusion channel increasing...

This bearing pillow block bracket is used with the DUO Build System 15mm Extrusion. The 9mm center hole is use with either the Long Through-bore Bearing (REV-41-1329) or the End Cap Bearing (REV-41-1322) to provide a low friction shaft support. This...

This bearing pillow block bracket is used with the DUO Build System 15mm Extrusion. The hex center hole fits the 5mm hex shaft. This bracket has alignment ribs on the bottom which help align the bracket with the extrusion channel...

For smaller applications the DUO Build System also comes in a 15mm x 15mm square extrusion. The 15mm profile of the 15mm Extrusion has slots on on all four sides that accept standard M3 hardware. Rather than using a T-nut, which is more expensive, slide...

This pillow block is designed to be modified to suit many different pivoting or rotating configurations. By default, the pillow block is threaded for a 1/4-20 bolt but it can be drilled out to larger diameters up to 0.875in. Specifications Material:...

The REV Smart Robot Servo (SRS) is a configurable metal-geared servo that takes the guesswork out of aligning and adjusting servo based mechanisms. One SRS can be used as a standard angular servo, a custom angular servo, and a continuous rotation servo...

The HD Hex series motors and gearboxes feature integrated encoders and power that plug right into the Control Hub (REV-31-1595) and Expansion Hub (REV-31-1153). The gearbox options feature 5mm Hex output or coupler making it easy to connect gears,...

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 three different types. The 32DP pinion gear is compatible with 32DP gears. The UltraPlanetary...