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Schaeffler bearings for rail vehicle braking systems

20 August 2019

Low weight, minimal space requirements, smooth running and reliability are all important requirements of modern rail vehicle braking systems.

Schaeffler provides a range of bearings for braking systems that includes needle roller bearings, drawn cup needle roller bearings with closed ends, thrust needle bearings and drawn cup roller clutches, each offering its own technical advantages for each specific braking application.   

Needle roller bearings

Needle roller bearings are complete units that consist of a machined outer ring and a needle roller and cage assembly. They can also be supplied with removable inner rings if necessary. The low radial section height enables extremely compact designs. They can be relubricated via the outer ring and can also be supplied with seals if required. The bearings are characterised by their high radial load carrying capacity.

Drawn cup needle roller bearings

Drawn cup needle roller bearings with open and closed ends consist of thin-walled outer rings and needle roller and cage assemblies and can be supplied with seals if required. They require less space in a radial direction than needle roller bearings. Drawn cup needle roller bearings with closed ends have a closed base that provides protection against moisture and contamination.

Drawn cup roller clutches with bearing assembly

Modern brakes have systems for automatically adjusting the brake pad as it wears. Drawn cup roller clutches with bearing supports are used as shifting clutches for the adjusting movement in these mechanisms.

Thrust washers

Thrust washers are used if the adjoining surfaces cannot be used as raceways when using thrust needle roller or cylindrical roller and cage assemblies. They serve as hardened raceways for thrust needle roller and thrust cylindrical roller bearings.

Thrust needle roller and cage assemblies

Thrust needle roller and cage assemblies consist of a thrust cage and needle rollers. They have a low axial section height and require hardened and ground surfaces as raceways. The bearings can support axial forces in one load direction. Thrust needle roller and cage assemblies have a particularly high axial load carrying capacity, as well as high rigidity and can be combined with thrust bearing washers. 

For more information, or to request your free copy of the brochure “Expertise in Bearing Technology and Services for Rail Vehicles“ please contact Schaeffler UK’s Communications & Branding Department on info.uk@schaeffler.com


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