Koyo delivers mega bearing for tunnel excavating machine

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.

http://www.bearing-news.com/delivers-77m-diameter-slewing-bearing-for-one-of-japans-largest-tunnel-excavation-shield-machines/

FAQ

¿Qué es un rodamiento de bolas KOYO EXSEV?

Su denominación por sus siglas en inglés significa ‘EXtreme & Special EnVironment’. Se trata de rodamientos, a veces con componentes cerámicos, diseñados para operar en ambientes extremos, como suciedad, vacío, alta temperatura, corrosión o corriente eléctrica.
Estos rodamientos se utilizan en muchos sectores y en KOYO los consideramos un hito tecnológico.

Para más información, puede ir a PRODUCTOS.

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