Skf Engineering and Research Centre B.v.

Eustathios Ioannides

Henning Wittmeyer

Bo Olov Jacobson

George Tin Yau Wan

A railway vehicle wheel always improve damping characteristics when a thin visco-elastic layer is placed between the tire and the connecting disc or ring. The visco-elastic layer improves damping through shearing action and has a thickness that is lower than that of the tire by an order of magnitude.

Railway vehicle wheel with improved damping characteristics

A rolling element bearing comprises an inner ring ( ) and an outer ring ( ) each provided with a raceway ( ), said rings having land regions ( ) on opposite sides of their raceways, and a series of rolling elements ( ) which are in rolling contact with the raceways and which are mutually spaced by a cage ( ), said cage ( ) engaging the land regions ( ) of said ring, and at least one of said rings ( ) being coated. Said at least one ring is coated with a wear and friction reducing, elastic coating over its full surface.

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Zeist, Netherlands

Eustathios Ioannides