NuVinci gear hub
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.
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December 28th, 2007 at 5:30 am
All parts of this Hub have been sourced and manufactured in China with the absolute poorest quality imaginable. These hubs will leak. The hubs are built, quality be damned, and shipped with completely nonconforming material. It’s a shame, it is such a wonderful concept that has been managed with utter incompetence.
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February 12th, 2008 at 11:47 am
Hi Martin. I read your comments with interest. I was considering trying to get one for a project I am involved in. Is it as bad as you say and what is the cost of a small model?
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February 18th, 2008 at 6:25 am
Martin: I’m intrigued as to how you came the conclusion you did with regard to sourcing, quality, etc. Are you an engineer that has disassembled one of these hubs and performed metallurgical analysis on the components? Do you have some inside knowledge unavailable to us mere mortals? Or are you merely leaping to some kind of unfounded, baseless conclusions?
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