Koyo

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BY INDUSTRY

Wind

We supply our bearings and share our technical knowledge with the world’s top listed wind turbine manufacturers.

We supply our bearings and share our technical knowledge with the world’s top listed wind turbine manufacturers.

Even before the ratification of the Kyoto protocol in 1997, JTEKT already made its important contribution to the wind turbine industry by using advanced technology and knowledge to develop and manufacture reliable, state of the art bearings. We supply our bearings and share our technical knowledge with the world’s top listed wind turbine manufacturers.

A wind turbine should run for 20 years with an availability of 95-98%. During this period maintenance is needed with an approximate frequency of every 6 months. Therefore reliability is the primary driver for its design. Taken this into account we have developed bearings for several applications in a wind turbine:

Generators
Main shaft
Gearbox

Experience and capabilities

Products for Generators:

Our Koyo brand hybrid ceramic bearings for generators feature ceramic balls with excellent insulation performance which additionally prevents high temperatures while rotating. Compared to regular types, our hybrid ceramic bearings improve the efficiency of use; reduce the frequency of re-lubrication and of preventive maintenance.

Products for the Main shaft:

Spherical roller bearings are used primarily for the main shaft of a wind turbine because of their superior aligning characteristics and load durability. Complex analysis of rotor rotational speeds, appropriate loads, shaft, housing, rigidity and lubrication are done on a regular basis to ensure the quality of our bearings.

Products for the Gearbox

The planetary gearbox and the generator of a wind turbine transform mechanical power into electricity. The gearbox needs to increase efficiency, provide low speeds, deliver high reduction ratios, transmit a higher torque and distribute proper stress among different load-bearing components.

Bearing 3D

FAQ

What is a bearing?

A bearing is a moving device that supports rotational movement between a stationary part and a rotating part. There are several types of bearings like slide, magnetic and rolling bearings. Koyo bearings are “Rolling Bearings” Rolling bearings have a long service life, high interchangeability and is power saving. The rolling elements of the bearings are assembled between inner and outer rings with or without cage. With this structure, a smooth rolling motion can be realized during operation. The great advantages of rolling bearings are:

Low starting friction
Ability to support both radial and thrust load and high speed rotation
Easy to handle and maintained
Interchangeable and easy acquirement (global normalization & standardization)
Can operate in extreme environments (high and low temperatures)
Simple methods of grease lubrication

Bearings are critical elements in all types of machinery and products. You can find them for example in automobiles, airplanes, home appliances but also in equipment for malting steel and semiconductors.

By Industry

Aerospace & Aviation

High performance and reliable bearings for the aerospace and aviation industry. By combining innovative technology, technical expertise and advanced manufacturing equipment, we are able to develop and manufacture high performance and reliable bearings for the aerospace and aviation industry.

Aerospace & Aviation

By Industry

Agriculture

We rely on the production of food, fiber and other agricultural products more than we realize. The machines and tools which are being used to grow and collect the crops must be in the best possible condition in order to increase and optimize the productivity and fulfill the needs of the world’s growing population.

By Industry

Automotive

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.

By Industry

Construction

Construction industry lies at the base of the world economy. Be it residential, commercial, heavy, civil or industrial edifice, they all require reliable heavy duty machinery and long term, trouble free functioning. JTEKT supplies both standard and customized Koyo products to serve those demanding applications.

By Industry

Machine tool

Market demand for increased productivity and product machining efficiency has led to regular improvements in speed and efficiency of machine tools. By using the high-quality bearings, the level of performance can be increased at the same time. Our Koyo branded machine tool bearings are promoting a higher speed, excellent accuracy and stability.

By Industry

Medical & healthcare

The use of diagnostic devices in the medical and healthcare industry has increased dramatically over the past few years. The CT-scan (Computed Tomography) is one of the devices which are being used for preventive and diagnostic screening in modern health care. JTEKT is present on this market segment, too, supplying EXSEV bearings for the CT scan equipment.

Medical & healthcare

By Industry

Motorcycle

The many bearings in a motorcycle have various functions such as supporting a spinning crankshaft or keeping the wheels on the road. They guide and support moving parts, reduce emitted heat, alleviate friction and minimize power loss. Koyo is a manufacturer of motorcycle bearings for several well-known motorcycle brands like Kawasaki and Suzuki. We offer a range of bearings for a variety of applications including chassis, engine and motorcycle transmission.

By Industry

Railway

Rail transport is a major form of passenger and freight transport all over the world. Railway vehicles are exposed to tough continuous use for a very long time, often in harsh conditions. It goes without saying that safety, reliability and fault-free operation is required from any component used for such applications.

By Industry

Replacement market

Replacement market (automotive and industrial) Our advanced technologies are a guarantee of a long lasting performance and high reliability of Koyo products, which is of particular value to the aftermarket user. Needless to say, we apply JTEKT elevated level of research and development to serve this market segment as well.

Replacement market

By Industry

Steel

It is difficult to imagine a world without steel and iron, so used have we grown to its everyday presence in our lives. The global steel consumption has risen significantly in the course of the 20th century, in highly developed, emerging and developing economies likewise. The steel consumption of a country has been a barometer for measuring the dynamics of economic progress. JTEKT is making its contribution to this immense industry by manufacturing a large range of bearings which are being used in the steel manufacturing plants.

By Industry

Transmission & gear

Transmission and gear systems are crucial in a lot of mechanical devices. The most common use is in automobile vehicles but they are also being used in a lot of agricultural, industrial and construction equipment and wind turbines. Transmissions and gears have several important functions but their main job is to provide speed and torque conversions in motorized equipment.

Transmission & gear

By Industry

Wind

We supply our bearings and share our technical knowledge with the world’s top listed wind turbine manufacturers. Even before the ratification of the Kyoto protocol in 1997, JTEKT already made its important contribution to the wind turbine industry by using advanced technology and knowledge to develop and manufacture reliable, state of the art bearings. We supply our bearings and share our technical knowledge with the world’s top listed wind turbine manufacturers.

By Industry

Electrical

High performance and reliable bearings for a huge variety of electrical applications. JTEKT develops and manufacture high performance and reliable bearings for a huge variety of electrical applications for the power tool market but also consumer goods market like washing, fitness and copying machines.

By Industry

Marine

At JTEKT we manufacture a range of advanced bearing and products for the Marine Industry. Our products competitive edge means an improved performance, longer life and the capability to operate in a variety of marine environments.

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