Differential STEM Lab
Before 23.45 ordered- tomorrow delivered
Orders placed from Sunday to Friday till 23:45 will be delivered the next day. Orders placed on Saturday will be delivered on Monday.
Belgium & Luxemburg
Shipments to Belgium & Luxemburg could take 1 extra day to be shipped.
30 days warranty on parts
We regard a broken part as an exception, because we always deliver the best quality with full responsibility. But we cannot rule out a small accident.
If the purchase was made via our web-shop no more than 30 days ago, then you may order a new part from our website for free. In all the other cases you will need to pay a small handling fee. Order part here
30 days return time
You have the right to cancel your order up to 30 days after receipt without giving any reason, provided that the seal has not been broken. When the seal is broken, your order is final and can no longer be returned. If you make use of your right of withdrawal, you have another 14 days after cancellation to return your product. You will then be credited with the full order amount including shipping costs. If you make use of your right of withdrawal, the product will be returned to the entrepreneur with all accessories supplied and in its original condition and packaging. To exercise this right, please contact us via email@example.com We will send you a return label in the mail. You can print this label and stick it on the repackaged shipment. Then you can hand it in by post at no extra cost. We will then refund the order amount due within 14 days after registering your return in case the product has already been returned in good order.
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Learn how the DIFFERENTIAL works:
The Differential is a stylised educational model, an interactive study guide to the mechanism, only for learning its essentials and principles of working. 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, your 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).
When and who invented it:
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.
Differentials are used mainly in cars as a part of the transmission mechanism. They improve manoeuvrability and performance of a car.