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. 18, 1989
Filed:
Dec. 03, 1985
Bataille J Marie, Saint-Valery-en-Caux, FR;
Dynapac, , SE;
Abstract
The present invention relates to a bearing device particularly intended to be used in the type of poker vibrator whose rotor shaft (2) exhibits an eccentric arranged between two needle roller bearings (3,4). Besides being carried in these bearings, the rotor shaft (2) is also carried in a deep-groove ball bearing (5) intended to take up any axial forces acting on the rotor shaft. In order to relieve it from radial forces, the deep-groove bearings (5) is mounted in accordance with this invention with a positive clearance in both the radial and axial directions. The radial clearance can thereby be provided either between the deep-groove ball bearing's outer race (6) and the bearing sleeve (7) or between its inner race (8) and the rotor shaft (2). The purpose of the axial clearance is to permit the radial movement of the deep-groove ball bearing (5) that is the purpose of the radial clearance.