Rotor shaft

Details Rotor shaft Rotor shaft

1981-12-01

1984-01-17

Footland, Lenard A.

Bearings

Rotary bearing

Plain bearing

384295, F16C 3312, F16C 3314

Patent

active

044261624

ABSTRACT:
A rotor shaft suitable for use as the rotor shaft of a steam turbine. The rotor shaft has a rotor shaft portion made of a Cr alloy steel having martensite structure and containing 8 to 13% Cr. The rotor shaft body is provided with at least one journal portion at which the rotor shaft is rotatably supported by a bearing. The rotor shaft further has a sleeve fitted around each journal portion. The sleeve is divided in the circumferential direction into a plurality of segments which are assembled together by welding or fitting into the sleeve having a circular cross-section. Due to the provision of the sleeve around the journal portion, the rotor shaft made of Cr alloy steel can have improved bearing properties.

REFERENCES:
patent: 121318 (1871-11-01), Bender
patent: 2704234 (1955-03-01), Love et al.
patent: 2913290 (1959-11-01), Jackman
patent: 3022126 (1962-02-01), Siebert

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