Conning motor hub surface to compensate disk conning angle...

Details Conning motor hub surface to compensate disk conning angle... Conning motor hub surface to compensate disk conning angle...

2006-11-07

2006-11-07

Tupper, Robert S. (Department: 2627)

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Reexamination Certificate

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07133251

ABSTRACT:
A disk mounting hub has a disk-mounting face formed at one end as a truncated conical surface of revolution symmetric about a central axis. A cylindrical inner hub member is coaxial with the hub body outside diameter and the surrounding mounting face. The inner hub member is adapted to receive a planar disk with a central opening. The mounting face is disposed at a hub face angle (π/2+/−Ω) relative to the central axis. Hub face angle Ω is selected so that a disk clamping force F applied to an inner disk portion surrounding the opening bends a portion of the disk interior to the hub inside diameter to conform with the conical disk-mounting face. This interior bending portion reduces or eliminates the tendency of the outer disk portion to form an excessive conning angle Φ.

REFERENCES:
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patent: 6785090 (2004-08-01), Koyanagi et al.
patent: 2001/0013989 (2001-08-01), Saiki et al.
patent: 2002/0057530 (2002-05-01), Lalouette

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