It’s all about spheres, not gears.

Fallbrook Technologies brings us a new development in drivetrain research. It is called the NuVinci hub and it is basically everything in a mechanical gear box — without the gears!

It’s a revolution in drivetrain technology. A new way of transmitting mechanical power based on spheres instead of gears. The NuVinci continuously variable planetary (CVP) technology, an innovative new continuously variable transmission (CVT), is not only helping vehicle designers and component manufacturers improve performance, ride quality and capabilities in existing products. It’s driving change and new designs never before thought possible.

There’s a lot to explain, so I’ll just let the demonstration video speak for itself.

Here’s a real-life demo of the NuVinci gear hub.

One of the great things about this new technology is its practical uses. It can be put into just about any gear and motor-based machine including, but not limited to, bicycles, motorcycles, cars, tractors, lawn mowers, etc. This one little device has the potential to change the way all mechanical devices are built! Exciting! More videos after the jump

Joona Laukka, division manager of cycling for Polar Heart Rate monitors takes the ATC NuVinci bike for a spin during the Tour de France rest day in Val d’Isere

Uli Schoberer, founder of SRM, tests the NuVinci bike.

The NuVinci hub in a tiny racecar…thing.