Internal recirculation insert for a ball screw and ball screw assembly including the insert
US9599202B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2010 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Jun 24, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19749
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An internal ball recirculation insert for a ball screw assembly. The ball screw assembly having a ball nut with at least one radial bore though it, a ball screw and load bearing balls. The ball screw and ball nut having complimental helical grooves, forming helical ball raceways when the ball screw and ball nut are assembled. The internal ball recirculation insert sized to fit into the radial bore of the ball nut, having a body portion, securing arms, a ball channel for channeling balls from one ball raceway to another and a friction or retention device around the circumference of the body portion. The friction device extending outwardly from a side wall of the recirculation insert, and contacting a wall of the radial bore in the ball nut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.