Ball screw drive

Details Ball screw drive Ball screw drive

2007-05-01

2007-05-01

Ridley, Richard (Department: 3682)

Machine element or mechanism

Gearing

Directly cooperating gears

C074S424710, C074S424870

Reexamination Certificate

active

11122478

ABSTRACT:
In a ball screw drive comprising a spindle nut (2) that can be disposed on a spindle (1), said spindle nut (2) comprising on an inner periphery, a ball groove (3) that is arranged along a helix and defines a load-bearing channel (6) for balls (5), an external deflector (7) comprising a return channel (8) for the balls (5) being arranged on an outer periphery of the spindle nut (2), said external deflector (7) comprising two ball openings (E1, E2), each of which is connected to an end of the load-bearing channel (6) to deflect the balls (5) from one end of the load-bearing channel (6) to the other end of the load-bearing channel (6), the external deflector (7) extends from one of the two ball openings (E1) to the other of the two ball openings (E2) at least approximately over one full winding about an axis of rotation of the spindle nut (2).

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patent: 08 14 012 (2001-08-01), None
patent: 22 36 828 (1991-04-01), None

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