NSK Develops a Highly Efficient Toroidal Variator Module for Front-wheel Drive Automobiles
NSK will exhibit this product at Tokyo Big Sight (located in Koto Ward in Tokyo) from Wednesday November 30 to Saturday December 11 at the Tokyo Motor Show 2011.
- World's first toroidal system for FWD vehicles
Conventional toroidal CVTs were available only in front-engine rear-wheel drive vehicles such as large-sized vehicles, due to the space required. NSK's new system changes internal specifications and uses more compact components. These improvements have resulted in a device 20% shorter than the conventional product, allowing for installation in FWD vehicles. Weighing 30% less than the conventional product, the toroidal variator can be utilized in a wide variety of vehicles.
- Improved transmission efficiency
Transmission efficiency that is superior to even the highest efficiency conventional products. Friction has been reduced by 50%.
- Wider range
Increasing the gear ratio has made lower engine speed at a wider range of speeds possible.
- Module design
Conventional toroidal CVTs have to be at least partially assembled after their delivery to the auto manufacturer. NSK's new toroidal variator is constructed as a module that is ready as-is for installation. This leads to improved productivity for auto manufacturers.