By Industry

KOYO brand bearings from JTEKT are found virtually anywhere where accurate rotational control is required

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  • High performance and reliable bearings for the aerospace and aviation industry. By combining innovative technology, technical expertise and advanced manufacturing
  • We rely on the production of food, fiber and other agricultural products more than we realize. The machines and tools
  • There are more than 260 million vehicles on the European roads with a huge variety of brands and models. Besides
  • Construction industry lies at the base of the world economy. Be it residential, commercial, heavy, civil or industrial edifice, they
  • Market demand for increased productivity and product machining efficiency has led to regular improvements in speed and efficiency of machine
  • The use of diagnostic devices in the medical and healthcare industry has increased dramatically over the past few years. The
  • The many bearings in a motorcycle have various functions such as supporting a spinning crankshaft or keeping the wheels on
  • Rail transport is a major form of passenger and freight transport all over the world. Railway vehicles are exposed to
  • Replacement market (automotive and industrial) Our advanced technologies are a guarantee of a long lasting performance and high reliability of
  • It is difficult to imagine a world without steel and iron, so used have we grown to its everyday presence
  • Transmission and gear systems are crucial in a lot of mechanical devices. The most common use is in automobile vehicles
  • We supply our bearings and share our technical knowledge with the world’s top listed wind turbine manufacturers. Even before the
  • High performance and reliable bearings for a huge variety of electrical applications. JTEKT develops and manufacture high performance and reliable
  • At JTEKT we manufacture a range of advanced bearing and products for the Marine Industry. Our products competitive edge means
Bearing 3D

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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