| 摘要 |
<p>A screw actuator (1) comprises a nut (2) and a screw (3) each comprising helical grooves (4, 5), said nut and screw engaging each other by means of rollers or balls (6) which are in contact with said grooves, a lubricant (8) being provided for the grooves and rollers or balls. Means are integrated in the actuator for replenishing the lubricant for the grooves and rollers or balls of the actuator. Said means may comprise a module (9, 2, 3, 60) which is connected to at least the helical grooves of the nut and/or screw.</p> |
