en

By Industry

Automotive

There are more than 260 million vehicles on the European roads with a huge variety of brands and models.

There are more than 260 million vehicles on the European roads with a huge variety of brands and models.

Besides driving innovation, today’s automotive industry is aiming at an improvement of engine efficiency, cleaner exhaust and optimized transmission technology. The great challenge for a car manufacturer is to sustain the car performance while reducing its environmental impact.

At JTEKT we understand the needs and unprecedented developments which the automotive industry is facing nowadays. By using our know-how and technology in this field we can offer a complete line of products which support an improved vehicle performance, improved safety & comfort, increase of fuel efficiency, and reduction of CO2 emission. 

Experience and capabilities

JTEKT is a leading supplier to the automotive original equipment manufacturers and replacement markets. Our bearings can be found in applications such as wheels, engines, transmissions and many others.

Bearing 3D
FAQ

What is an angular contact ball bearing?

An angular contact ball bearing uses axially asymmetric races. An axial load passes in a straight line through the bearing, whereas a radial load takes an oblique path that tends to want to separate the races axially. So the angle of contact on the inner race is the same as that on the outer race. Angular contact bearings better support "combined loads" (loading in both the radial and axial directions) and the contact angle of the bearing should be matched to the relative proportions of each. The larger the contact angle (typically in the range 10 to 45 degrees), the higher the axial load supported, but the lower the radial load. In high speed applications, such as turbines, jet engines, and dentistry equipment, the centrifugal forces generated by the balls changes the contact angle at the inner and outer race. Ceramics such as silicon nitride are now regularly used in such applications due to their low density (40% of steel). These materials significantly reduce centrifugal force and function well in high temperature environments. They also tend to wear in a similar way to bearing steel—rather than cracking or shattering like glass or porcelain.

Most bicycles use angular-contact bearings in the headsets because the forces on these bearings are in both the radial and axial direction.

For more information please click here “Products”