Patent · US Active

Method for producing a spindle nut for a ball screw

US8800129B2 · kind B2 · utility

3Cited by

5References

6Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Jurgen Osterlanger · Emskirchen, DE
Dieter Adler · Herzogenaurach, DE
Manfred Kraus · Kehl, DE
Ralf Mayer · Weitra, AT

Key dates

Filing date	Aug 30, 2010
Grant date	Aug 12, 2014
Priority date	—
Expiry date	Jun 12, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19772
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A spindle nut for a ball screw is provided, having a continuous ball track (1) for balls (2), a ball groove (3,14) for the balls (2) extending on an inner periphery of the spindle nut about the rotational axis thereof and along a helical line, the ball groove extending across at least one thread (4), and a diversion device (5), in order to divert with its diverting channel (9) balls (2) from one end of the thread (4) to the beginning of the thread (4). The spindle nut is provided with ball inlets (13, 16), on the one side connected to the ball groove (3, 14) and, on the other side connected to the diverting channel (9), with the ball groove (3, 14) and the ball inlet (13, 16) both having identical cross-sectional profiles.

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