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Shear viscosity with rotational viscometer

  
OELCHECK test instrument: Anton Paar rheometer Physica MCR 301 cone/plate measuring system
Sample quantity: approx. 1 - 5 grams
Unit: Pa·s
Test result: Shear viscosity
Analysis for: lubricating greases
Brief description:

The measuring system is filled with approximately 2 g of the homogenised and deaerated grease, adjusted and tempered.

In a standardised testing procedure, the (apparent) dynamic viscosity at a set shear rate is determined and the shear viscosity at the beginning and the end of the testing procedure and the shear viscosity decrease in percentage terms are displayed.

Statement:

Based on the shear viscosity and its stability following shear stress, the rheological properties of a lubricating grease and its changes under shear load are diagnosed. This figure allows conclusions to be drawn on the grease's suitability for speeds.

Underlying test standard: DIN 51810-1