Ball screw and method for displacing a threaded spindle in a...

Details Ball screw and method for displacing a threaded spindle in a... Ball screw and method for displacing a threaded spindle in a...

2011-01-18

2011-01-18

Ridley, Richard W (Department: 3656)

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

C074S089340

Reexamination Certificate

active

07870803

ABSTRACT:
A ball screw comprising a threaded nut with thread channels for rolling bodies, a threaded spindle with thread channels for rolling bodies, and an intermediate bush, which is arranged between the threaded nut and the threaded spindle, wherein the intermediate bush has thread channels, which face the threaded nut and are adapted to the thread channels of the threaded nut, and rolling bodies are guided in these thread channels, and wherein the intermediate bush has thread channels, which face the threaded spindle and are adapted to its thread channels, and rolling bodies are guided in these thread channels, is proposed, wherein a first threaded arrangement, which is formed by means of the thread channels of the threaded nut and the intermediate bush facing one another, and a second threaded arrangement, which is formed by means of the thread channels of the intermediate bush and the threaded spindle facing one another, operate in opposite directions.

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