Abstract: Shaft bearing assembly comprising a bearing housing having one or more rolling bearings therein, through which a shaft protrudes on at least one side, which housing is provided with an inlet opening for the supply of lubricant and an outlet opening for excess spent lubricant and seals acting on the shaft and outlet opening, characterized in that the bearing housing is provided with a temperature-and pressure-sensitive outlet valve for draining excess lubricant from the housing, which outlet valve opens at a predetermined temperature and closes when the temperature falls below that temperature.

Abstract: The nozzle assembly of a constant fine lubrication device in which a line extending from a constant fine lubricant supplying unit extends into the oil hole of a nozzle top mounted on a holding member for holding an object to be lubricated so that lubricating oil is injected from the nozzle of the nozzle top to the object to be lubricated.

Abstract: An oil film damper whose one portion is supported, whose free end portion or portions define oil film formation portions and which has a Rahmen or rigid frame structure is used so that a minimum quantity of lubricating oil only sufficient to fill clearances in which oil films are formed can have a function of satisfactorily damping shaft vibrations. A jet of lubricating oil fed from the exterior of the oil film damper is directly supplied to each ball bearing so that the satisfactory lubrication of ball bearings is ensured, the overall function of the bearing device is improved and a service life thererof is increased.

Abstract: In a bearing with a dimple in a grease passage, the improvement wherein the locking pin is urged toward a grease fitting by a spring washer; when the pressure of the introduced grease is excessively high, the locking pin is forced downwardly against the spring washer and blocks the grease passageway through the outer race.