Koyo is one of the main global bearing manufacturing companies that is actively involved in fighting counterfeit products
For more in depth information see related link to WBA: 

Recently we published a paper on the importance of the proper validation of bearings for the Automotive repair/maintenance application, in BearingNews. The main focus in that paper was on the "bearing design" validation. In the latest paper the focus is on the importance of proper "bearing manufacturing" validation.



This year’s HannoverMesse was visited by more than 215,000 visitors including ~40% international attendants joining this industrial fair with ~6500 global exhibitors. Among those exhibitors was JTEKT/Koyo with a booth in hall 22 displaying its latest bearing products and related technologies. As usual Koyo’s booth was well visited by industry experts, branch representatives, the press, students and other interested attendants. Among those visitors were several valued Koyo distributors, including Künemund, Kugellager Premium, Mondial, Ditzinger, Dono, PWO, Ubex, HL Group, Enso and others, that attended our cocktail drink on the Wednesday late afternoon to catch up with each other and exchange in a friendly spirit. During the fair our Partner Kugellager Premium invited us for joint visits to different OE customers. The open discussions were very fruitful and will reinforce our strategy to grow the aftermarket business through our distribution network.

This event again contributed successfully to the expansion and intensification of Koyo’s business activities in the roller bearing markets in “greater” Europe and beyond.



A Roller Bearing is really an extraordinary piece of mechanical engineering. The smallest types have a diameter of no more than a few millimeters and are used in dentist drilling devices with maximum rotation speeds of more than 30.000 rpm, while the largest ones are used in tunnel drilling equipment and measure more than 7 meters in diameter, while rotating at no more than a few rpm's per day.
Linked is an article about one of Koyo's mega bearings for such an application.


Bearing 3D

¿Qué es un rodamiento de Bolas de Contacto Angular?

Se trata de un rodamiento de bolas que tiene pistas de rodadura asimétricas. La carga axial atraviesa el rodamiento en una línea recta diagonal, al mismo tiempo la carga radial sigue una línea oblicua. Ambas condiciones provocan la separación axial de las pistas del rodamiento.
El rodamiento de Bolas Contacto Angular tiene una buena capacidad de carga combinada; a medida que el ángulo de contacto es mayor, la capacidad axial aumenta en detrimento de la radial (el ángulo es el mismo para ambas pistas de contacto, interior y exterior); el rango habitual del ángulo es de 10 a 45 grados.
En aplicaciones de alta velocidad, como turbinas o motores a reacción, el ángulo de contacto en las pistas resulta modificado por la fuerza centrífuga generada por las bolas. En estos casos se utilizan bolas de material cerámico por su baja densidad respecto al acero (un 40% de este aprox), por eso estos materiales reducen significativamente la fuerza centrífuga y se comportan bien a altas temperaturas; además de tener un comportamiento mecánico de fallo similar al acero de rodamiento.
Como ejemplo de aplicación, las horquillas de motos o bicicletas usan este tipo de rodamientos por estar sometidos a cargas en ambas direcciones.

Para más información, puede ir a PRODUCTOS.

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