Patent ID: 7107805

Claim:
Method for the production of a spindle nut ( 3 ) of a spherical thread drive mechanism, whereby the spindle nut ( 3 ) has at least one screw-shaped track ( 4 ) formed as a single piece on its inner circumference, having threads ( 38 ) that are limited by shoulders ( 6 ), whereby the shoulder ( 6 ) is interrupted by at least one deflecting recess ( 23 ) at at least one deflecting position, in order to deflect balls ( 13 ) out of one thread into an adjacent thread ( 38 ), the method comprising: arranging a tool arbor ( 56 ) in a hollow blank ( 57 ), the tool arbor ( 56 ) having on an outer circumference a counter profile of the screw-shaped track ( 4 ) and a projecting part ( 59 ) for each of the at least one deflecting recesses, providing a tool that operates on and reshapes the blank ( 57 ) from the exterior by exercising radial forces (F), and reshaping an inner circumferential surface of the hollow blank ( 57 ) to the counter profile and to the projecting part ( 59 ) of the tool arbor ( 56 ), forming the screw-shaped track ( 4 ) and the deflecting recess ( 23 ).