Rotary apparatus

Details Rotary apparatus Rotary apparatus

1991-08-28

1993-04-27

Rachuba, M.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

511659, 5116593, 511345F, B24B 4902

Patent

active

052050785

ABSTRACT:
A rotary apparatus includes a rotary spindle, a front end portion of which projects from a shell to an outside thereof and which is supported by magnetic force while the spindle is rotating, a working tool being mountable on the front end portion of the spindle. A first sensor is provided for detecting a position of the front end portion of the spindle in a radial direction thereof and is provided on the front end portion of the shell and in an annular space formed at a periphery of the front end portion of the spindle such that the first sensor occupies a volume of not more than 50% of the annular space. A second sensor is provided, for detecting a position of a rear end portion of the spindle in the radial direction thereof and is provided on the rear end portion of the shell.

REFERENCES:
patent: 4180946 (1980-01-01), Heijkenskjold et al.
patent: 4852306 (1989-08-01), Harmand
patent: 4956945 (1990-09-01), Ooshima
patent: 5024025 (1991-06-01), Kihara et al.
patent: 5027280 (1991-06-01), Ando et al.

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