| 摘要 |
A recirculating ball screw suitable for high speed operation and having an improved lubrication system is disclosed. Recirculation of the balls is accomplished in a smooth and continuous manner by a new ball recirculating member which cooperates with the lead screw to urge the balls out of their normal ball track to transfer the ball over the lead screw in an axial direction and then deposit the ball smoothly back into the ball track without the use of ball pick-up fingers protruding into the ball track. The improved lubrication system is comprised of an outer sleeve which seals the lubricant in place by the use of sealing rings so as to prevent lubricant contamination and unwanted lubricant migration.
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