Manufacture of ball nut with internal crossover path for ball re

Details Manufacture of ball nut with internal crossover path for ball re Manufacture of ball nut with internal crossover path for ball re

1979-11-07

1981-06-09

Czaja, Donald E.

Plastic and nonmetallic article shaping or treating: processes

With step of making mold or mold shaping, per se

Utilizing surface to be reproduced as an impression pattern

74459, 264220, 264227, B29C 102

Patent

active

042724767

ABSTRACT:
A ball nut and screw assembly is provided with a molded internal return system for a train of balls drivingly interconnecting the nut and screw. A ball nut with an internal crossover is used as a master mold to produce an imprint mold which positively profiles the helical groove and the cross of the master mold. The imprint mold is positioned in a blank nut and a thermal set resin is supplied to radial openings formed in the blank nut which subsequently hardens into a plug with an internal crossover channel like that of the master mold.

REFERENCES:
patent: 3961541 (1976-06-01), Fund et al.
patent: 4070921 (1978-01-01), Arnold
patent: 4148226 (1979-04-01), Benton

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