HD Hex Motor 20:1 Spur Gearbox

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, sprockets, wheels, etc. Encoder and power cables are included with motor. The HD Hex Motor is similar in size and power to other brushed 550 class motors with more convenient output options and connectors.
The HD Hex Motor 20:1 Spur Gearbox is compatible with the 15mm Metal Bent HD Hex Motor Bracket V2 (REV-41-1487) and the 15mm Metal Flat HD Hex Motor Bracket V2 (REV-41-1486).


  • Weight: 350g (including motor)
  • Output Shaft: 5mm hex
  • Output Shaft Length: 40mm
  • Mounting Holes: 10 - M3 tapped - use a 5mm length or shorter bolt
  • Free Speed: 300 rpm (31.4 rad/s)
  • Stall Torque: 297.4 oz-in (2.1 Nm)


CAD & Drawings

  • coming soon