Ball screw assembly
AssigneeNook Industries, Inc.
InventorsDaniel J. PILTZ, Alexander S. MARGOLIN, Steven J. DENNEY, Joseph H. NOOK, III
Life of this patent
Estimating the term…
Abstract
A ball screw assembly having a bearing ball recirculation arrangement. The ball screw assembly includes a ball screw, a nut, and at least one set of two return plugs and at least one cap. The nut body is in threaded engagement with the ball screw, wherein one of the ball screw and the nut body is rotationally fixed relative the other. Each plug may be seated into a cavity on an outer surface of the nut body. The cap may have a recessed channel at least partially defining a return path for bearing balls from one end of a load bearing path to another end of a load bearing path.
Claims21
A ball screw assembly having a bearing ball recirculation arrangement, the assembly comprising:
- a ball screw;
- a nut body in threaded engagement with the ball screw, wherein one of the ball screw and the nut body is rotationally fixed relative the other;
- at least one set of two return plugs, each plug inserted into a cavity on an outer surface of the nut body;
- and
- at least one cap having a recessed channel at least partially defining a return path for bearing balls from one end of a load bearing path to another end of a load bearing path.
A ball screw assembly having a closed bearing ball recirculation path, the assembly comprising:
- a ball screw;
- a nut in threaded engagement with the ball screw;
- at least one cap secured to the nut, the inner surface of the cap having a recessed channel at least partially defining a length of the recirculation path;
- and
- at least two return plugs, each plug seated into a cavity in the outside surface of the nut.
Dependencies are inferred from the claim text.