Variable speed sheave assemblies and method of producing

Details Variable speed sheave assemblies and method of producing Variable speed sheave assemblies and method of producing

1975-08-06

1977-05-17

Lanham, C.W.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291495NM, 291495S, 291495C, 308238, B21D 5310

Patent

active

040232476

ABSTRACT:
An adjustable flange for a dry lube variable speed sheave assembly having an unmachined bore is centered on a vacuum fixture. A thin dry bearing material is secured and located axially and radially within the flange bore and the annular space between the thin dry bearing material and the flange bore is filled with a high compressive modulus material such as epoxy. The dry bearing material is maintained flat during the process by the application of vacuum through the fixture. After curing, the completed adjustable flange is removed for the fixture and assembled with the sleeve component of a sheave. In accordance with a variation of the method, the separately formed thin dry bearing material is eliminated and a suitable dry lube material is mixed with the epoxy-like cement prior to injecting the same into said annular space. Following curing, this material becomes the dry lube bearing of the flange.

REFERENCES:
patent: 2554008 (1951-05-01), Burger
patent: 3056709 (1962-10-01), Rising et al.
patent: 3172797 (1965-03-01), Bungardt
patent: 3218383 (1965-11-01), White
patent: 3342667 (1967-09-01), Berlinghof, Jr.
patent: 3668040 (1972-06-01), Clark
patent: 3802285 (1974-04-01), Williams

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