Tapered roller bearing

Details Tapered roller bearing Tapered roller bearing

2006-03-07

2006-03-07

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S004000

Reexamination Certificate

active

07010081

ABSTRACT:
In a diagnostic system, having a rotating gantry (24) and a stationary gantry (22), a bearing race (50) rotates with surface portions having varying linear velocities in accordance with distance from an axis (A) of rotation. Tapered roller bearings (46) interface the bearing race (50) and are conically shaped to velocity match the variable linear surface velocity race (50). The race (50) preferably includes two faces, which provide both axial and radial supporting surfaces for the bearings (46) to interface. The bearings (46) are disposed about the race (50) in pairs. A drive motor (52) is connected to one of the bearings (46) to rotate the gantry (24).

REFERENCES:
patent: 4232914 (1980-11-01), Bowen, III
patent: 4651007 (1987-03-01), Perusek et al.
patent: 5473657 (1995-12-01), McKenna
patent: 5784428 (1998-07-01), Schmidt
patent: 5982844 (1999-11-01), Tybinkowski et al.
patent: 6022325 (2000-02-01), Siczek et al.
patent: 6204577 (2001-03-01), Chottiner et al.
patent: 6337894 (2002-01-01), Tybinkowski et al.
patent: 1 095 620 (2001-05-01), None

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