Cajas de cambios

Utilizadas en innumerables aplicaciones, las cajas de cambios son componentes cruciales que pueden transformar una pequeña fuerza de rotación (par) en una mucho mayor o acelerar una velocidad de rotación lenta. Las cajas de cambios transmiten energía a nuestro alrededor: turbinas eólicas, transmisiones de vehículos, engranajes reductores de noria, etc.
Los rodamientos hacen que las cajas de cambios giren con suavidad, lo que los convierte en componentes indispensables de nuestro mundo en movimiento.
La avería de una caja de cambios puede tener efectos costosos, por lo que es imprescindible contar con rodamientos extremadamente fiables. NSK no solo persigue los diseños más modernos y óptimos en línea con las necesidades de las cajas de engranajes, sino que también pretende suministrar rodamientos fiables con una elevada capacidad de carga y una larga vida útil para reducir los costes de mantenimiento.
Seguimos aprovechando nuestros recursos para desarrollar rodamientos para cajas de cambios de nueva generación, respetuosos con el medio ambiente y con una rotación aún más suave.
Operating conditions: high shock loads
Industrial gearboxes are used in many different sectors and often face dynamic operating conditions twinned with high shock loads in some cases. They are usually located between the drive on one side and the process technology on the other. In this case, industrial gearboxes primarily serve to reduce input speeds and increase torques for the processes in question. Typical applications include power generation and mining.
All industrial gearboxes have to function reliably in spite of the dynamic processes acting on them. As higher-performance machines keep emerging, the bearings used for shafts also play a crucial role in ensuring reliability in service. These are also tailored specifically to the relevant application.
For instance, NSK supplies solutions for every stage of the planetary gears used for wind turbines, from the planetary carrier to the generator shaft. Various options are available: traditional locating/non-locating bearings, floating bearings and adjusted bearing arrangements. The choice of material is another key consideration. NSK’s Super-TF technology maximises bearings’ service life, even in operating conditions where conventional bearings would show signs of fatigue damage. If it is also possible to change operating conditions for the better, the components can last several times longer than standard bearings.
High Load Capacity Cylindrical Roller Bearings
Two key innovations extend the lives of heavy-duty cylindrical roller bearings by up to 30%. Firstly, an increase in the number of rollers reduces the surface pressure on the contact area between the rollers and the raceway, thereby increasing the maximum load. Secondly, an optimised cage provides sufficient stability despite the larger number of rolling elements.
Our innovations:
The TF series of bearings
Electrically insulated bearings with a ceramic coating
NSKHPS Spherical Roller Bearings

Compartir