The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 1980
Filed:
Oct. 16, 1978
William A Mitchell, Springfield, VT (US);
John S Clark, Springfield, VT (US);
Bryant Grinder Corporation, Springfield, VT (US);
Abstract
An antifriction bearing support (12) disclosed includes an outer support member (50) for mounting thereof on a spindle housing (16) and an inner support member (52) for mounting an antifriction bearing (42) which rotatably supports a spindle (38). The support also includes at least one flexible diaphragm (54) extending between the inner and outer support members to radially fix the inner support member and the antifriction bearing and preload the antifriction bearing axially with respect to the axis of spindle rotation so as to permit high speed spindle rotation. Preferably, a pair of the diaphragms (54) are utilized and are mounted in a spaced and parallel relationship to each other. Inner and outer round edges of the diaphragms are secured between axial surfaces (80, 82, 88, 90) of the support members and associated retaining ring (76, 78, 84, 86) that have soldered connections to the support members. Threading of the outer support member onto the housing flexes the diaphragms to provide the preloading of the antifriction bearing mounted by the diaphragm support. Another antifriction bearing (48) on the housing is also preloaded through the spindle by the diaphragms. A first end of the inner support member includes an opening (112) that receives the antifriction bearing (42) and a second end of the inner support member includes a heat exchanger (116) for removing heat. An oil-mist lubrication system feeds an oil-mist lubricant to the antifriction bearings and to the heat exchanger so as to increase the speed at which the spindle can be rotated.