Bearing unit for railway carriages

Details Bearing unit for railway carriages Bearing unit for railway carriages

2005-05-09

2008-09-02

Hannon, Thomas R (Department: 3682)

Bearings

Rotary bearing

Antifriction bearing

C384S551000, C384S571000

Reexamination Certificate

active

07419306

ABSTRACT:
Emergence of fretting worn powder is to be suppressed, and intrusion of the worn powder that has emerged into an internal area of the bearing. A ring spacer is interposed between an end face of an inner ring of the bearing to be mounted on a wheel axle, and an end face of a rear cover (ring member) to be mounted on the wheel axle for axial positioning of the inner race with respect to the wheel axle. An elastic seal ring is integrally fixed to an outer periphery of the ring spacer. The elastic seal ring is elastically fitted to an outer circumference of a recessed stepped portion formed on the end face of the rear cover. The elastic seal ring is thus pressed against the opposing end faces of the inner race and the rear cover. Inside the elastic seal ring, a storage space for the worn powder is provided.

REFERENCES:
patent: 3041901 (1962-06-01), Bayerl
patent: 4692040 (1987-09-01), Ebaugh et al.
patent: 4997294 (1991-03-01), Hillmann
patent: 5118206 (1992-06-01), Otto et al.
patent: 5492419 (1996-02-01), Miller et al.
patent: 6126321 (2000-10-01), Fetty et al.
patent: 6561559 (2003-05-01), Skiller et al.
patent: 2001027254 (2001-01-01), None
patent: 2001354136 (2001-12-01), None
patent: 2003-049856 (2003-02-01), None

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