BALL SCREW DEVICE

Provided is a ball screw device which enables easy production and assembly of a nut member (3) and formation of an endless circulation path for balls in the nut member (3) with high accuracy. The nut member (3) includes a plurality of nut components (5,6) arranged in a superposed manner along an axi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NISHIDE, Tetsuhiro, IWASHIRO, Sho
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	Provided is a ball screw device which enables easy production and assembly of a nut member (3) and formation of an endless circulation path for balls in the nut member (3) with high accuracy. The nut member (3) includes a plurality of nut components (5,6) arranged in a superposed manner along an axial direction of a screw shaft (2). At a boundary portion between the nut components (5, 6) which are adjacent to each other, a raceway path (30) for balls (4) extending around a periphery of the screw shaft (2) is formed. A joining surface of each of the nut components (5, 6) used for joining with another one of the nut components includes: a raceway forming surface (53, 62) which is annularly formed around the through hole; and an abutment surface (50,60) for joining which is formed on an outer side in a radial direction with respect to the raceway forming surface (53, 62).