Dust protection device of ball screw, has oil skimmer, whose end surface is arranged at end surface of screw nut and is provided with oil skimmer section at spindle side surface

摘要

The dust protection device has an oil skimmer (40), whose end surface is arranged at the end surface of a screw nut (20). The oil skimmer is provided with an oil skimmer section (41) at the spindle side surface. The oil skimmer section comes in contact with the surface of the spindle. An extension (42) is formed on the other surface of the oil skimmer and is pressed against the skimmer (50). A radial gap is formed between the skimmer and the oil skimmer.