Stem Lab Differential by UGears

Learn how the DIFFERENTIAL works

The Differential is an interactive puzzle kit to help learn and better understand the workings of a car differential. 

The Differential was designed to ensure that the drive wheels sitting on the same axle rotate with a different rate and cover different distances at the same time. This mechanism allows the car to make turns without the wheels skidding, prevents wheel-slip, reduces tyre wear, and makes entering and going out of turns easier for the driver. Having assembled the Differential, you can unblock it pushing the lever in position 1 (Up) and set both wheels in motion by rotation of the drive gear or the wheel. The Control lever regulates the smooth locking of the left and right wheels independently by turning left or right respectively. In the “down” position of the lever, both wheels are linked in a rigid coupling and can either rotate together (propelled by the drive gear or a wheel) or lock simultaneously (by the lever of the wheel).

The car differential was invented by French engineer Onesiphore Pecqueur in 1825. In the 1930s of the 20th century, German automotive engineer Ferdinand Porsche made significant improvements to the device.

Model Size: 17.5*13.5*10.5 cm  
Number of components: 163
Estimated time of assembly: 1-2 hour 

Ages: 8+

Assembling and discovering Ugears models is a smart and engaging hobby for grown-ups and kids of all ages. All Ugears models are made of sustainably sourced wood and require neither glue nor special tools to be fully assembled into functional working models.  Also, there is no need for batteries or any external power source as they are powered by rubber bands, gears, cranks and gravity.

Each Ugears model is not just a construction kit but an incarnate IDEA of a PERFECT mechanism. Putting them together, you bring the idea to life.

This model is only one of many that we stock in our Ugears Model Kits range from Ugears Australia. This range is also part of our STEM Engineering & Construction collection, which has even more building kits for you to choose from.