Railway rolling stock

  • Wide selection of premium quality bearings
  • Excellent technical support
  • NSK – the leading manufacturer of axle bearings and bearings for traction motors
The use of bearings for rolling stock is varied, from door moving to axle bearings,  roller bearings for traction motors and gearboxes as well as axle bearing sets.
Válečkové ložisko EM

Gearbox bearings need to withstand high loads and high speeds as well as be resistant to swing, vibration, shocks and extreme temperatures. Rolling bearings with massive cages are the most common solution. 

Traction motor bearings operate in severe conditions such as high radial and axial loads, high impact loads, high speed and extended periods of operation without maintenance. That is why NSK uses highly pure bearing steel. Inner and outer rings are treated for heat dimensional stabilisation and high-strength cages are applied. Outside surfaces and both end faces of outer rings are coated with ceramic or heat-resistant resin to prevent electric pitting.
 
To prevent electric pitting, NSK developed ceramic coating insulated bearings and PPS-resin coating insulated bearings. Traction motors often use insulated cylindrical roller bearings and insulated ball bearings.
Ložiska NSK pro trakční motory
Izolovaná ložiska NSK pro trakční motory
Rolling stock axle bearings are subject to radial impact loads caused by rail joints, switches and sometimes wheel flats, as well as to the static and dynamic radial loads of vehicle weight. They are also liable to receive axial loads generated by lateral movement as trains run on curved rails or in a snaking motion. These loads together form complex combinations that act on axle bearings. Additionally, as axle bearings play a critical role in the safety of railroad operation, they are periodically disassembled for inspection. This means simple and dependable procedures for disassembly, inspection and re-assembly are important design factors.
 
All types of radial roller bearings, including tapered roller bearings, spherical roller bearings and cylindrical roller bearings, have been used in rolling stock axles due to the particular merits of each type.
 
To improve operating efficiency, bearings must offer longer inspection intervals. To meet all these needs, we offer the following six types of axle bearings:

6 types of axle bearings

Ložiska pro nápravy kolejových vozidel
  • Sealed-Clean rotating end cap tapered roller bearings (RCT)
  • Sealed-Clean rotating end cap cylindrical roller bearings (RCC)
  • Spherical roller bearings
  • Cylindrical roller bearings combined with ball bearings
  • Cylindrical roller bearings with ribs
  • Tapered roller bearings
 
BearingChecker
We are specialists in efficient and safe tools for bearing mounting and dismounting, as well as monitoring and diagnostics tools for controlling the operation of rotating parts. Our range of products and services can help you save on maintenance costs.

For rail applications, mobile hydraulic pullers, induction heaters or middle frequency induction heaters are particularly suitable.

Mobilní hydraulický stahovák ložisek
Indukční ohřívač Betex 40 RMD-TURBO
železnice / Železnice

Leaders in our industry

We strive to offer you the technically optimal solution in the shortest possible time. We save you costs and we are here for you 24 hours a day, 7 days a week, 365 days a year.
 
 
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Stock value of more than 3.5 million EUR

Our stock range is built according to the specific needs of our customers and market requirements, so we always deliver on time.
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Deliveries from the warehouse within 24 hours

We modify (cut and finish) and deliver linear guides for MRO within 24 hours.

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25 years of experience

You can rely on our specialist technical knowledge and skills.
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Professional technical support

Our experienced technical team is always on-hand for customer queries and support.
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Product quality and origin guarantee

Because we cooperate with world-leading manufacturers, we are always able to document the origin of our stock, guarantee quality and guarantee its parameters.

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Emergency service 24/7

We provide our contracted customers with a 24/7 delivery service.

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