The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 11, 2000
Filed:
Jun. 05, 1998
Atsushi Takagi, Toyohashi, JP;
ASMO Co., Ltd., Shizouka-ken, JP;
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.