Bearing failure indicator

Details Bearing failure indicator Bearing failure indicator

2006-03-07

2006-03-07

Hannon, Thomas R. (Department: 3682)

Bearings

Rotary bearing

Antifriction bearing

C384S624000

Reexamination Certificate

active

07008114

ABSTRACT:
A shaft is disposed along an axis of rotation and a bearing failure indicator, in the form of a disk having protrusions or teeth spaced about its periphery, is provided on the shaft adjacent a bearing supporting a tubular roll for rotation relative to the shaft. When the bearing has undergone a predetermined amount of wear, which happens prior to bearing failure, the teeth or protrusions of the disk come into engagement with a contact surface due to non-concentric rotation of the roll relative to the shaft. In one embodiment, the disk is thick and the teeth make an audible knocking sound which warns an operator of an impending bearing failure. In another embodiment, the disk is relatively thin and a squealing sound is generated when the protrusions engage the contact surface. In addition to the bearing failure indicator, a slip coupling may be used to prevent the transmission of torque to the drive shaft when interference between the disk and the contact surface occurs. Further, a secondary bearing may be provided to prolong operation of a wearing primary bearing.

REFERENCES:
patent: 3183043 (1965-05-01), Creeger et al.
patent: 3897116 (1975-07-01), Carpenter
patent: 4063786 (1977-12-01), Rall
patent: 5224835 (1993-07-01), Oltman
patent: 5806988 (1998-09-01), Dublin et al.
patent: 5998894 (1999-12-01), Raad
patent: 6237877 (2001-05-01), Wallace et al.
patent: 6271761 (2001-08-01), Smith et al.
patent: 6314788 (2001-11-01), Williams, Sr.
patent: 336 660 (1921-05-01), None
patent: 202 02 536 (2002-05-01), None
Patent Abstracts Of Japan Bd. 0182, Nr. 27 (M-1597), Apr. 25, 1994, & JP 06 017827, Koyo Seiko Co. Ltd, Jan. 25, 1994.
Patent Abstracts Of Japan Bd. 0111, Nr. 60 (M-592), May 23, 1987, & JP 61 294215, Asahi Chem Ind Co Ltd, Dec. 25, 1986.

Affiliated with

Also associated with

Rating

Bearing failure indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bearing failure indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bearing failure indicator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3579702