Method of the manufacture of a spherical bearing

Abstract

Abstract THIS SPECIFICATION DISCLOSES A METHOD OF THE MANUFACTURE OF SPHERICAL BEARINGS. A MOLD IS PROVIDED TO FORM A ROD MEMBER WHICH CONSTITUTES A PART OF A SPHERICAL BEARING. IN THIS MOLD IS POSITIONED AN INNER SPHERICAL WHEEL AS A CORE, THE WHEEL HAVING THE SPHERIAL SURFACE THEREOF PROVIDED WITH A THIN FILM OF TIN, COPPER OR LEAD. A CHARGE OF MOLTEN ALUMINUM IS CAST INTO THE MOLD WITH SAID INNER SPHERICAL WHEEL SO POSITIONED AS DESCRIBED, TO THEREBY FORM A SPHERICAL HEAD PORTION OF THE ROD MEMBER WHICH HOLDS THE INNER WHEEL THEREIN AND SIMULTANEOUSLY FORMING A CAST ALUMINIUM ALLOY PORTION HAVING A HIGH BEARING PERFORMANCE IN THE SPHERICAL PORTION OF THE ROD MEMBER. AFTER REMOVED FROM THE MOLD, THE ROD MEMBER WITH THE INNER WHEEL HELD THEREIN IS STRUCK IN THE SPHERICAL HEAD PORTION FROM THE EXTERIOR THEREOF SO AS TO PROVIDE A CLEARANCE BETWEEN THE INNER SURFACE OF THE INNER WHEEL HOLDING PORTION AND THE OUTER SURFACE OF THE INNER WHEEL SO THAT THE INNER WHEEL CAN ROTATE WITHIN THE INNER WHEEL HOLDING PORTION OF THE ROD MEMBER. THE SPHERICAL BEARING THUS OBTAINED IS VERY MUCH SIMPLIFIED IN CONSTRUCTION AND HIGHLY EXCELLANT IN PERFORMANCE AS WELL AS ECONOMICAL TO MANUFACTURE.

Inventors

• 👤 Hiroshi Teramachi

Bibliographic Details