fr

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.

 

   

Mrs. Sadzida Smajlovic, General Manager of Kugellager-Premium GmbH visited the Koyo team at the Hannover Messe 2019

 

Kugellager-Premium GmbH, a 100% Koyo distributor, visited us at the Hannover Messe 2019.


Kugellager-Premium is a new distributor in the German market which is located in Steinhagen, close to Koyo´s European main plant for needle bearings in Kuensebeck/Halle Westfalen .

Kugellager Premium set its main focus on business of smaller and medium OE´s (B2B) as well as the distribution of Koyo products on their web shop (B2C) at www.kugellager-premium.de.

A big advantage of Kugellager-Premium is the wide selection of Koyo items which are directly available from stock to serve urgent demands, volume independent, within short time.

Next to spot business Kugellager-Premium has also the premises to fulfill OE expectations and requirements due to a high level of flexibility, stocking and an excellent service. 

 

Bearing 3D
FAQ

Qu’est-ce qu’un roulement à contact oblique?

Un roulement à contact oblique possède des pistes décalées axialement entre la bague intérieure et extérieure. L’angle de contact sur la piste intérieure est le même que celui sur la piste extérieure. Les roulements à contact oblique supportent mieux les charges combinées (charges radiales et axiales) et l'angle de contact du roulement doit être adapté en fonction du rapport charge radiale / charge axiale. Plus l’angle de contact est important (généralement compris entre 10 et 45 degrés), plus la charge axiale supportée est importante, mais la charge radiale supportée diminue. Dans les applications à haute vitesse, comme les turbines, les moteurs à réaction et l'équipement dentaire, la force centrifuge générée par les billes modifie l'angle de contact au niveau des pistes des bagues intérieures et extérieures. Les céramiques comme le nitrure de silicium sont maintenant régulièrement utilisées dans ces applications en raison de leur faible densité (40% de celle de l’acier). Ces matériaux réduisent significativement la force centrifuge et peuvent fonctionner dans des environnements aux températures élevées. Ils ont également un mode d’usure similaire à l’acier, plutôt que de se fissurer ou de se briser comme le verre ou la porcelaine.
La plupart des 2 roues utilisent des roulements à contact oblique au niveau de la fourche en raison des charges appliquées sur ce roulement qui sont à la fois radiales et axiales.

Pour plus d’information, cliquer sur “Produits”.

You may communicate us your personal data in the frame of using our website. JTEKT Europe Bearings B.V. and its affiliates undertake to comply with the European General Data Protection Regulation (GDPR May 25th 2018) and shall process your data in compliance with GDPR. In case you would like to proceed with your rights (refusal, information, access, erasure, restriction, portability), you can send a request to dpo.jeo@jtekt.eu

I understand