Patent · US Active

Profiled nut of a screw drive, in particular a ball screw nut of a ball screw drive, and method for the production thereof

US12031613B2 · kind B2 · utility

1Cited by

4References

12Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Mario Kreutzer · Sonneberg, DE
Richard Baier · Dörflas, DE
Thomas Kandler · Herzogenaurach, DE
Paul Heinz · Forchheim, DE

Key dates

Filing date	Apr 22, 2020
Grant date	Jul 9, 2024
Priority date	—
Expiry date	Jun 17, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2025/249
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A profiled nut (1) of a screw drive includes a sleeve (3) produced from sheet steel, has a non-cuttingly formed rolling profile (4) on the inner circumference for rolling contact with rolling bodies and is hardened in a heat treatment method at least in the region of the rolling profile (4). An inner lateral surface of the sleeve (3) having the rolling profile (4) is hardened and has a higher Rockwell hardness. An outer lateral surface of the sleeve (3) is designed such that it can be welded and has a lower Rockwell hardness.

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