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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 a tapered roller bearing?

A tapered roller bearing is a bearing in which tapered rollers (truncated conical rollers) are inserted between the cup (outer ring) and cone (inner ring). The rollers are guided by the cone back face rib.

They have high radial and axial (thrust) load capacities at low to intermediate speeds. Taper roller bearings are available in single-row, two-row and four-row designs. With single-row bearings, the thrust load capacity is about 60% of the radial capacity. Double-row bearings have a greater radial load capacity and can handle thrust loads from both directions. The rollers can be configured so that the contact lines to the races converge or diverge towards the axis of rotation. Diverging double-row bearings increase the rigidity of the shaft mounting, but converging bearings do not. Other configurations for double-row bearings feature a single outer ring and two inner rings, or two outer rings and a single inner ring. Four-row tapered roller bearings consist of four rows of alternating converging and diverging rollers.


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