Method for manufacturing a friction speed change gearing

Details Method for manufacturing a friction speed change gearing Method for manufacturing a friction speed change gearing

1977-01-19

1978-10-24

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

29447, 29469, 74798, B23P 1900

Patent

active

041213319

ABSTRACT:
A method of manufacturing a friction speed change gearing of the type which comprises a housing, inner and outer races, a plurality of cylindrical planetary rollers mounted between the inner and outer races subject to elastic deformation, and a spider member engaging the planetary rollers, wherein the method is characterized by forming a first assembly including the inner race and the planetary rollers and a second assembly including the housing and the outer race, forming a temperature differential between the two assemblies, inserting the first assembly into the outer race in the second assembly and removing the temperature differentiation so that the rollers are uniformly compressed due to a thermal deformation which occurs when the temperature differentiation has been removed.

REFERENCES:
patent: 881471 (1908-03-01), Hoffman
patent: 1146372 (1915-07-01), Neukirch
patent: 3600976 (1971-08-01), Hewko
patent: 3793907 (1974-02-01), Nakamura
patent: 3817125 (1974-06-01), Nakamura et al.

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