Spindle stock unit for surface grinding machine

Details Spindle stock unit for surface grinding machine Spindle stock unit for surface grinding machine

1986-05-22

1987-10-20

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51166MH, 409232, B24B 4104

Patent

active

047005106

ABSTRACT:
A spindle stock unit for surface grinding machines includes a spindle head, and a spindle assembly having a spindle body rotatably supported by a pair of axially spaced radial fluid bearings in the spindle head and positioned in place by a pair of axially spaced thrust fluid bearings in the spindle head. To minimize thermal displacement of the spindle assembly in an axial direction, the spindle body is made of crystallized glass of low coefficient of thermal expansion.

REFERENCES:
patent: 3454311 (1969-07-01), Tomita et al.
patent: 4285551 (1981-08-01), Suzuki et al.
patent: 4474483 (1984-10-01), Suzuki et al.
patent: 4566226 (1986-01-01), Kimura
patent: 4587765 (1986-05-01), Matsui
Catalog of "Neoceram" issued from Narumi Seito Kabushiki Kaisha, p. 5, photo 1.
Catalog of "Neoceram" issued from Nippon Electric Glass Co. Ltd., p. 11, photo at bottom right.

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