Screw-nut screw transmission coupling

Details Screw-nut screw transmission coupling Screw-nut screw transmission coupling

1978-06-22

1980-02-05

Troutman, Doris L.

Machine element or mechanism

Gearing

Teeth

F16N 5504

Patent

active

041866215

ABSTRACT:
A screw-nut screw transmission coupling in which a tubular outer innerly-grooved sleeve and an inner outerly-grooved elongate member are coupled to define a plurality of endless ducts for circulation of a plurality of ball bearings; each said endless duct being formed by two adjacent turns of a helical duct defined by said outer sleeve and said inner elongate member, and a return duct extending through a respective through bore provided through said sleeve and straddling said two adjacent turns, said return duct being defined by a cavity provided in a plate fixed to the outer surface of said sleeve and closing said through bore.

REFERENCES:
patent: 2833156 (1958-05-01), Spontelli
patent: 3815435 (1974-06-01), Eschenbacacher et al.

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