US 2011/0255813 A1 · Sensorized Bearing Unit

Abstract

The present invention defines a bearing unit comprising a bearing provided with one or more strain sensors, where the bearing comprises an inner ring and an outer ring, and where the one or more strain sensors (10) comprises a sensing element (14) integrated on a support member (12). According to the invention, the support member is a thin flat plate made of a metal material and is attached to a surface (5) of the bearing only by means of a first weld seam (21) and a second weld seam (22) located at first and second lateral ends of the support member. The present invention also defines a method of attaching the strain sensor (10) to the bearing surface (5).

Claims18

Dependent claims

A bearing unit comprising:

a bearing having a surface;
and
at least one sensor including a support member having a generally flat, metal support plate disposed on the bearing surface, the plate having a sensing surface and first and second lateral ends, and a sensing element integrated on the sensing surface of the support member metal plate, the plate being attached to the bearing surface by a first weld seam located at the first lateral end and a second weld seam located at the second lateral end.

Dependencies are inferred from the claim text.

Facts

Application

13/141,405Filed 22 Dec 2008

Priority

EP PCT/EP2008/01104522 Dec 2008

Published

20 Oct 2011

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

F16C 19/522
With devices affected by abnormal or undesired conditions: related to load on the bearing, e.g. bearings with load sensors or means to protect the…
G01L 5/0019
Force sensors associated with a bearing: by using strain gages, piezoelectric, piezo-resistive or other ohmic-resistance based sensors
F16C 33/586
Details of specific parts of races: outside the space between the races, e.g. end faces or bore of inner ring
Y10T 29/49103
Resistor making: strain gauge making

Sensorized Bearing Unit

Life of this patent

Sensorized Bearing Unit

Life of this patent

Abstract

Claims18