Ball screw having an axially extending ball deflector

Details Ball screw having an axially extending ball deflector Ball screw having an axially extending ball deflector

1987-05-13

1989-06-27

Wilson, Neill R.

Machine element or mechanism

Gearing

Teeth

180146, 411432, F16H 5517, F16B 3708

Patent

active

048417963

ABSTRACT:
A ball screw comprising a screw stem having on its outer periphery a helical rolling groove and a nut having on its inner periphery a helical rolling groove, and a deflector mounted on the nut and having ball returning grooves for returning a ball rolling between the rolling grooves in the screw stem and nut to between the original rolling grooves, thereby forming endless circulating passageways. The nut has a fitting groove open to at least one of both the open ends of the nut and is formed narrowing form its bottom toward its radial open end. Fitted into the fitting groove is a deflector having ball returning grooves corresponding in number to the endless circulating passageways to be formed. The deflector can be fixed accurately and firmly using axial fixing means fixed to an open end of the nut.

REFERENCES:
patent: 2917938 (1959-12-01), Folkerts
patent: 2938399 (1960-05-01), Briggs
patent: 3070072 (1962-12-01), Folkerts
patent: 3261224 (1966-07-01), Anthony

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