This year Koyo will be joining Automechanika in Frankfurt with a small booth to promote its aftermarket automotive product portfolio. Next to Koyo automotive bearings, also automotive steering systems and components branded JTEKT will be promoted. Both JTEKT product families have recently been included in the TECDOC global database to support the AM distribution channels. All JTEKT/Koyo products that are offered to the replacement market, are genuine parts that were originally validated as OEM parts by the carmakers.

We will be happy to meet you at our booth (Hall 1.1, booth C17) should you happen to visit the fair.

On Sunday 17th of June, Toyota won the 86th edition of Les 24 Heures du Mans

JTEKT, sponsor of the Toyota team congratulates the Toyota Gazoo Racing Team and is honoured to associate its name to this outstanding victory. On board of the hybrid Toyota TS050 (2018 version), team mates, Buemi, Nakajima and Alonso registered the first ever victory of the Japanese brand in the LMP1 (Le Mans Prototypes Hybrid) category.

Already world champion in 2014, Toyota has tried since almost 30 years to write its name to the world's most famous and very competitive race.

Toyota team never gave up to win this race despite some very cruel disillusion like in 2016, when, leading the race, the Toyota car stopped on the track in the last lap of the competition leaving the victory to  Porsche 919 hybrid. Now Toyota wrote what is probably the best page of its automobile racing history.

JTEKT sponsors Toyota at le mans 2018


Belagro is an international exhibition focused on the agriculture industry for machinery, equipment and technologies for production, processing, transportation and storage of agricultural products and solutions. The exhibition took place on the 5th until the 10th of June in Minsk, Belarus.

Koyo Distributor Belsnabpodshipnik participated to this fair and offered Koyo the opportunity to join forces in order to promote the Koyo bearings range and show our technologies and capabilities within this area.

The booth was very well visited by representatives who are active in the agricultural industry from CIS - and central Asian countries. We also had the chance to meet with members of the Belarussian ministry of Agriculture. They showed a lot of interest in Koyo bearings and Toyoda Machineworks also a brand of JTEKT Corporation.

Last but not least JTEKT/Koyo was honored to receive a certificate of appreciation from Belsnabpodshipnik for the great business relationship between both companies. We would like to thank Belsnabpodshipnik for their support and trust in our company and products.

 Koyo and Belsnabpodshipnik 2018 at Belagro


‘ A unique combination of business and knowledge sharing’

Seville – Resting on its historical laurels with a warm and sunny glow, Seville is a dazzling city with a lively mix of Renaissance, Gothic, Mudéjar and Modern architecture.

Seville was the venue of our 7th edition of the European Distributor Convention. More than 70 participants from 21 countries attended to this special event.

It was a pleasure to welcome our valued Partners and colleagues at Barceló Sevilla Renacimiento and combine business with the great Spanish culture. The business meeting was a great opportunity for us and our partners to exchange ideas, knowledge and information about our future direction.

Our three days schedule not only included a business meeting but also a very special cultural program from where we could visit Seville and have a great Toro Experience in Huelva. The event was a great chance to show our customers how important they are for us and of course stay up to date about developments at the European bearing market. We would like to all of our business Partners for participating and your very important input during this event.

Also a special thank you goes out to our Spanish distributor Mr. Jose Manuel Castillo Rodamientos Componentes y Kits and Mr. Jose Blanca from Nautalia Viajes

JTEKT Koyo European Distributor Convention 2018





‘ A unique combination of business and knowledge sharing’ …

Seville – Resting on its historical laurels with a warm and sunny glow, Seville is a dazzling city with a lively mix of Rennaissance, Gothic, Mudéjar and Modern architecture.

The 7th edition of the European Distributor Convention will take place in Seville, Spain. 

Koyo Seville Convention 2018

Bearing 3D

Eğik bilyalı rulman nedir?

Eğik bilyalı rulmanda eksenel asimetrik yuvarlanma yolu vardır. Eksenel yükler rulmanın içinden düz bir şekilde geçmekle beraber, radyal yükler eğik yolla geçmektedir. O eğik yolun, yuvarlanma yolunu eksenel bir şekilde ayırmaya eğilimi vardır. Böylece, hem diş hem de iç yuvarlanma yolların temas açışı aynıdır. Eğik rulmanlar birleşmiş yüklerle birlikte (hem radyal hem de eksenel yönlü) daha iyi çalışmakta. Rulmanın temas açısı ise verilen yüklerin miktarlarına uyumlu olmalıdır. Temas açısı arttıkça (standart olarak 10 ve 45 derece arasındadır) rulmanın da eksenel yüke karşı direncı artar, fakat aynı zamanda radyal yükleme kapasitesi azalır. Türbin, jet motoru ya da dişcilik aletler gibi yüksek hız uygulamalarda, rulman içindeki bilyalar tarafından oluşturan merkezkaç kuvvetler iç ve dış yuvarlanma yollarındaki temas açısını değiştirmekte. Bu tip uygulamalarda yoğunluğu az olduğu için (çeliğin %40 yoğunluğu) silisyum nitrür gibi seramik maddeler sıkca kullanılmaktadır. Yüksek sıcaklık içinde çok iyi çalışıp, merkeckaç kuvveti oldukça azaltır. Onlar rulman çeliği gibi aşınıyor, o yüzden çatlama ya da kırma çok az karşılanan bir durum. Eğik bilyalı rulmanlar çoğu bisikletlerde, esasen onların direksiyon rulmanında kullanılır, çünkü onları hem radyal hem de eksenel yükler etkilemektedir.

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