Technic Knob Gear 32072

The LEGO® Technic Knob Gear 32072 is an essential component for creating compact gearboxes, function selectors, steering mechanisms, and other advanced mechanical systems. Its unique four-lobed design allows it to engage smoothly with matching knob gears, making it ideal for transferring motion at right angles or switching between multiple functions in complex LEGO® Technic builds.

Essential LEGO® Technic Knob Gear

Unlike standard gears, the Technic Knob Gear is designed to transmit motion while allowing compact layouts and reliable operation. It is widely used in official LEGO® Technic models for gear selectors, drivetrains, steering systems, and other mechanisms where precise movement and efficient power transfer are required.

Suggested Build Ideas

• Manual Gearboxes. Combine with LEGO® Technic gears to build working transmissions for cars, trucks, and other vehicles.
• Function Selectors. Create mechanisms that switch between multiple powered or manual functions within a single model.
• Steering Systems. Build smooth Hand-of-God steering and compact steering linkages for Technic vehicles.
• Engineering MOCs. Use knob gears in cranes, construction equipment, robotics, and custom machines requiring compact right-angle gear transmission.

Build Complete LEGO® Technic Mechanisms

Pair this knob gear with LEGO® Technic beams, Technic bricks, Technic pins and connectors, and additional LEGO® Technic gears to create durable mechanical assemblies for vehicles, machinery, and custom engineering projects.

Explore our complete range of LEGO® Technic parts to find compatible components for your next build.