MOTION GUIDE DEVICE, BALL SCREW ASSEMBLY, AND END CAP

摘要

A ball screw assembly has a screw shaft, a nut, a plurality of balls, and two end caps. The screw shaft has a spiral rolling groove formed on an outer surface thereof. The nut has a spiral load rolling groove formed on an inner surface thereof. The screw shaft passes through the nut, and the rolling groove aligns with the load rolling groove, and the rolling groove and the load rolling groove jointly define a raceway. The balls are disposed between the rolling groove of the screw shaft and the load rolling groove of the nut. The end caps respectively arranged on two opposite sides of the nut. The screw shaft passes through the end caps, one end surface of each end cap is exposed from the nut, and each one of the end surfaces has a plurality of dust discharge outlets formed thereon.

主权项

1. A ball screw assembly, comprising:
a screw shaft having a spiral rolling groove formed on an outer surface thereof; a nut having a spiral load rolling groove formed on an inner surface thereof, the screw shaft coupled through the nut, the rolling groove aligned with the load rolling groove, and the rolling groove and the load rolling groove jointly define a raceway; a plurality of balls disposed between the rolling groove of the screw shaft and the load rolling groove of the nut; and two end caps respectively configured on two opposite sides of the nut; wherein the screw shaft couples through the end caps, an end surface of each end cap is exposed from the nut, and each one of the end surfaces has a plurality of dust discharge outlets formed thereon.