Grease sensor

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Grease sensor
Grease sensor
Grease sensor
Grease sensor

Developed by The Schaeffler Group in conjunction with Freudenberg Dichtungs- und Schwingungstechnik GmbH & Co. KG and lubricants specialist Klüber Lubrication, the new grease sensor incorporates an electronic evaluation system, which enables the condition of the grease to be monitored whilst the bearings are operating. The sensor is positioned directly in the rolling bearing immersed in the grease.
This is a significant breakthrough, as the schedule for replacing rolling bearing grease can now be planned precisely into maintenance schedules. Any changes in the condition of the grease are detected early, long before any damage can be caused to the bearings.
The grease sensor, which has a diameter of just 5mm and a length of 40mm, is able to detect four parameters of the grease: water content, cloudiness (opacity), wear (thermal or mechanical), and temperature. From these parameters, the sensor’s electronic evaluation system utilises complex software algorithms to generate an analogue signal (4-20mA), which then displays the condition of the grease. By setting alarm thresholds (limit values), digital signal outputs can also be generated, indicating whether the grease quality is ‘poor’ or ‘good’. The user can decide at which point in the condition of the grease (from 100% for as-new, to a theoretical 0% for an unusable grease) relubrication or grease replacement should be carried out.

Posted on November 3, 2011 - (71 views)
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Schaeffler Technologies AG & Co. KG
Georg-Schäfer-Straße 30
97421 Schweinfurt - Germany
+49-9132-826563
+49-9132-822130
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