Bearing structure of rotating machine

Details Bearing structure of rotating machine Bearing structure of rotating machine

1998-06-05

2000-01-11

Hannon, Thomas R.

Bearings

Rotary bearing

Plain bearing

384192, 384213, F16C 2304

Patent

active

060128496

ABSTRACT:
A rotating shaft of a rotating machine is supported at its both ends by bearing bushes which are held in a frame of the rotating machine. The outer periphery of the bearing bush is rounded and held with a rounded surface formed on the frame, so that the rotational axis of the shaft and the bearing are self-aligned by rotation of the bearing bush. The inner bore of the bearing bush rotatably supporting the shaft therein is shortened by forming a relief bore, the diameter of which is larger than that of the inner bore. Because of this bearing structure, a natural vibration frequency of the shaft varies less, and, therefore, the rotating machine can be easily designed so that harmful noises due to the natural vibration are sufficiently suppressed.

REFERENCES:
patent: 4409505 (1983-10-01), Petersen
patent: 5107158 (1992-04-01), Peck
patent: 5192137 (1993-03-01), Renard
patent: 5677584 (1997-10-01), Keck

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