Patent ID: 6691837
Filing Date: 2004-02-17
Classification: F16D,F16H,Y10T

Abstract:
A screw actuator, comprising:a nut and a screw each including helical grooves, said nut and screw engaging each other by means of rollers or balls which are in contact with said grooves; and a lubricant being provided for the grooves and rollers or balls, and means which are integrated in the actuator for replenishing the lubricant for the grooves and rollers or balls of the actuator, characterized in that the means for replenishing the lubricant include a modular reservoir for containing an amount of lubricant, said modular reservoir being held within a bore in the screw and being provided with means for feeding the lubricant to at least one of the helical grooves of the nut and screw.