A ball screw includes: a nut; a screw shaft; and an end deflector that is attached to the nut, and has a guiding protrusion portion which protrudes toward a helical groove of the screw shaft, in which a guiding tip edge of the guiding protrusion portion picks up a ball and guides the ball into the end deflector, the end deflector includes a ball lifting portion that lifts the ball along one groove side surface of the helical groove, and the guiding tip edge picks up the ball lifted by the ball lifting portion.
BALL SCREW AND STEERING APPARATUS
VIS A BILLES ET DISPOSITIF DE DIRECTION
2015-08-26
Patent
Electronic Resource
English