High speed spindle with preloaded bearings

Details High speed spindle with preloaded bearings High speed spindle with preloaded bearings

1982-06-22

1985-05-28

Briggs, William R.

Gear cutting, milling, or planing

Milling

Cutter spindle or spindle support

384490, B23Q 504, F16C 1300

Patent

active

045197342

ABSTRACT:
A high speed spindle preferably of the motorized type is described having means for axially preloading the spindle bearings and hydraulic preload locking means for locking the preload against diminution by expected axial pull-out forces exerted on the spindle shaft counter to the preload during machining. The hydraulic locking action is released in the event unexpectedly high, potentially damaging axial pull-out forces are encountered during machining.

REFERENCES:
patent: 2618517 (1952-11-01), Erikson et al.
patent: 2819127 (1958-01-01), Grobey
patent: 3211060 (1965-10-01), McCann
patent: 3222991 (1965-12-01), Bone
patent: 3307890 (1967-03-01), Johansson
patent: 3352611 (1967-11-01), Seidel
patent: 3620586 (1971-11-01), Maastricht
patent: 3948577 (1976-04-01), Gamet
patent: 4116506 (1978-09-01), Moritomo et al.
patent: 4329000 (1982-05-01), Keske
patent: 4400098 (1983-08-01), Lacey et al.

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