SKF railway axlebox

Axleboxes, wheelset bearings and units are vital components in the reliability of railway rolling stock, influencing the reliability and economics of railways. We have long-term experience in developing, designing, calculating and performing validation testing on axleboxes for all kinds of railways vehicles. This includes high-speed vehicles, locomotives, multiple units, coaches, mass transit vehicles and freight cars.

Today, millions of our axlebox solutions are in service throughout the world in every climate, from moderate, tropical desert to sub-zero wilderness. We offer customized solution packages for railway vehicle manufacturers and operators based on individual specifications.

Packages typically include axleboxes, factory lubricated and sealed, ready-to-mount wheelset bearing units, as well as sensors and condition monitoring systems. From early design stages to delivery, we also offer customer support and project handling globally. Helping secure reliable operations in a wide range of conditions and reducing life cycle costs.

SKF has developed a new design for axleboxes to help customers reduce weight and improve the performance of bogies while reducing the environmental impact. The new Y25 axlebox, designed for axle loads up to 25 tons, complies with industry standards.

Gothenburg, Sweden, 20 September 2022: Including bearing housing, front cover, sealing collars and fasteners the new housing weighs 80 kg which is significantly lighter than earlier SKF Y25 models. This is mainly due to design and material changes. With a lower unsprung mass, the new housing helps to reduce component, track and infrastructure wear. Weight reduction of rolling stock is one of the key priorities in the railway industry to meet sustainability and efficiency goals.

The axlebox is manufactured in SKFs in-house production facility in France.

“Our customers are looking for more sustainable solutions. Any weight reduction of the components will impact the energy balance of the train and support the ability to add additional cargo.”, says Stefan Gladeck, Director Railway. “The new design features will offer more opportunities and flexibility for wheelset designs in freight”.

The new Y25 is design-ready for various bearing types, allowing for greater choices when designing or exchanging bearing solutions to optimise the wheelset performance. This includes cylindrical roller bearings and units and tapered roller bearing units.


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