Bearing unit and main spindle device of machine tool...

Details Bearing unit and main spindle device of machine tool... Bearing unit and main spindle device of machine tool...

2007-11-08

2011-11-01

Howell, Daniel (Department: 3726)

Gear cutting, milling, or planing

Milling

Cutter spindle or spindle support

C409S233000, C384S126000, C384S624000

Reexamination Certificate

active

08047750

ABSTRACT:
A bearing unit capable of withstanding a large axial force based on a simple structure including: a bearing10having an internal ring13fitted to an inside member2, an outer ring14fitted to an outside member6, lots of rolling elements15disposed between the outer ring14and the inner ring13; and a transmitting direction shifting means A transmitting an axial force F from the inner ring13to the outside member6when the axial force F transmitted from the inside member2to the internal ring13exceeds a predetermined value or above, and a main spindle device of a machine tool, which is provided with the bearing unit, are provided.

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