Variator 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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Assemble it and discover the principle of working of the Variator.
- The model kit comes with a QR-code that will forward you to the learning guide about the mechanism, the principal of its working, the main characteristics, formulas, and interesting assignments.
- Dive into augmented reality and look at how the random generator works. Interact with the model via a special AR application from Ugears
Find out about the Variator
The Variator is a device that transfers and adjusts the engine torque by changing the ratio of gears. Gear ratio can change automatically, manually or within a pre-set program. The term most drivers and automobile enthusiasts are more accustomed with is Continuously Variable Transmission, or CVT. With the Ugears Variator model of the STEM lab collection you can learn and comprehend one of the most important parts of a car without soiling your hands in machine oil!
When and who invented it:
The roots of the modern car CVT go back to 1879 when an American entrepreneur and a pioneer of the automobile industry Milton Othello Reeves invented a device for use in sawmilling that he then called a variable-speed transmission. Later he began fitting this transmission to his cars. The Reeves CVT was also used by several other manufacturers.
The CVT is used in mechanisms, in which a continuous range of gear ratios must be changed seamlessly: cars, motor scooters, snowmobiles, quadracycles, conveyors, metal-cutting machines, etc. To have a better idea about how it is used in different types of equipment, try the AR application that comes with the Ugears STEM model.
The Variator’s design and how it works
The Mechanical Variator of the Ugears STEM lab collection is a fully functional wooden replica of a Belt-driven Friction Cone CVT. The Cone CVT varies the drive ratio by moving a wheel or belt up and down the axis of conical roller. In the Ugears Variator model, the belt, powered manually via the reducer, transfers the rotation to the driven cone pulleys. Use the transmission fork to change gears and observe how the speed of the driven cone pulley drops or rises while the drive cone pulley’s speed remains the same. Due to the open design of the model, you will be able to see the whole process.