Abstract

A horizontal-axis oil-lubricated cylindrical roller bearing arrangement for bearing traction motors of rail vehicles, including a stationary bearing bracket, a cylindrical roller bearing having an outer ring fastened to the stationary bearing bracket, a shaft on which an inner ring of the cylindrical roller bearing is fastened, and an annular oil chamber arranged coaxially relative to the bearing and having an upper section connected with the bearing by at least an oil outlet in the chamber wall facing the bearing and connected by at least one duct with an oil-catcher device. The oil-catcher device is supplied from a gear case serving as a lubricant oil reservoir and is placed on the inside of the gear case. The oil-catcher device meters the amount of oil to be caught by the catcher device. Feeding of the lubricating oil to the annular oil chamber takes place at a level which is below the oil outlet from the annular oil chamber into the bearing. Between the annular oil chamber and the bearing is provided an annular interspace which contains means for producing a lubricating oil mist for bearing lubrication. To assure bearing lubrication after downtimes, an oil retention device for storing a reside amount of oil is provided in the interspace.