Methods of fabricating inner roller and outer roller in internal

Details Methods of fabricating inner roller and outer roller in internal Methods of fabricating inner roller and outer roller in internal

1997-06-10

1999-02-09

Cuda, Irene

Metal working

Method of mechanical manufacture

Roller making

2989531, 29558, B23P 1500

Patent

active

058679022

ABSTRACT:
In fabricating an inner roller for use in an internal-meshing planetary gear construction, the outer periphery of an inner-roller blank 30c is chucked in the state in which depressive forces are equally exerted on the outer periphery in all the directions thereof by a chucking jig 50A, and the inner-peripheral wall of the blank 30c is subjected to a burnishing work in this state. The resulting inner-roller blank 30c is heat-treated in the state in which the depressive chucking is released, whereupon the outer periphery of the blank 30c is finished by grinding. It is accordingly possible to fabricate at low cost the inner roller which can suppress angular backlash owing to a smaller clearance defined between it and a mating inner pin, and which exhibits a high durability and favorable slip characteristics.

REFERENCES:
patent: 410651 (1889-09-01), Schwab
patent: 3927450 (1975-12-01), Sommer et al.
patent: 4658823 (1987-04-01), Lopez

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