Ball screw drive
AssigneeSchaeffler Technologies AG & Co. KG
InventorsPhilippe Ott, Raphael Wittmann
Life of this patent
Estimating the term…
Abstract
A ball screw drive includes two screw drive parts (3, 4), namely a lead screw (3) and a nut (4). The ball screw drive also includes a deflection element (6) for the individual deflection of balls (5) is inserted into a recess (7), formed by one of the screw drive parts (3, 4), such that a gap (16) is formed between the base (15) of the recess (7) and the deflection element (6), and such that lateral contact surfaces (17) of the deflection element (6) which are located next to the recess (7) rest on the screw drive part (3, 4).
Claims19
1-8. (canceled)
A ball screw comprising:
- two spindle drive parts, the two spindle drive parts being a threaded spindle and a spindle nut;
- a deflection piece for a single deflection of balls, the deflection piece inserted into a depression formed by a first of the two spindle drive parts in such a way that a gap area is formed between a base of the depression and the deflection piece and the deflection piece lies on the first of the two spindle drive parts by lateral contact faces near to the depression.
A method of constructing a ball screw comprising:
- providing two spindle drive parts, the two spindle drive parts being a threaded spindle and a spindle nut, a first of the two spindle drive parts including lateral contact faces and a depression recessed away from the lateral contact faces;
- inserting a deflection piece for deflecting balls into the depression in such a way that a gap area is formed between a base of the depression and the deflection piece and the deflection piece contacts the lateral contact faces.
A ball screw comprising:
- two spindle drive parts, the two spindle drive parts being a threaded spindle and a spindle nut, a first of the two spindle drive parts including lateral contact faces and a depression recessed away from the lateral contact faces;
- balls radially between the threaded spindle and the spindle nut;
- and
- a deflection piece for deflecting the balls into the depression in such a way that a gap area is formed between a base of the depression and the deflection piece and the deflection piece contacts the lateral contact faces.
Dependencies are inferred from the claim text.