Patent · US Active

Ball screw drive

US11015688B2 · kind B2 · utility

0Cited by

10References

9Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Mario Kreutzer · Sonneberg, DE
Gerd Sanewski · Erlangen, DE
Nadine Kliemann · Herzogenaurach, DE

Key dates

Filing date	Jul 14, 2016
Grant date	May 25, 2021
Priority date	—
Expiry date	Oct 15, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2025/2096
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A ball screw drive comprising a leadscrew that has at least one outer ball groove and comprising a threaded nut that has at least one inner ball groove, which ball grooves together to form a ball channel in which balls, via which the leadscrew is guided relative to the threaded nut, are accommodated, wherein in the ball groove of the threaded nut is provided at least one radially closed pocket in which a deflection element for deflecting the balls moving in the ball groove is accommodated, wherein the threaded nut has an outer deflection device, which outer deflection device is axially in front of the deflection element in the form of an individual deflection element, is situated on the outer side of the threaded nut and engages in two radial openings in the threaded nut, and by means of which outer deflection device the balls are axially offset.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.