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:
Mar. 17, 1981
Filed:
Jan. 31, 1979
Applicant:
Inventors:
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
308 10 ; 308238 ; 308D / ;
Abstract
A needle bearing for a magnetically supported rotor shaft in a measuring instrument, such as a watt-hour meter, having a thin metal bearing needle projecting into a plastic needle guide having good wear and friction properties is provided in a manner advantageous from a production point of view, while providing high guidance accuracy and good cooling of the structure, by means of a coating on the needle having good sliding properties in the region interacting with the needle guide. The coating takes the form of a sleeve which can be slipped onto the bearing needle and replaced in a most simple manner.