Vibration-Rolling-Wear-Tester
For False-Brinelling and Standstill Marking Tests
Our false brinelling test rig offers maximum flexibility and precision when testing the wear protection behaviour of lubricants in rolling bearings.
Not only can it be used to fulfil the SNR-FEB2 test standard, a standard test required for greases in wind turbine pitch bearings at a swivel angle of ±3°, it can also be used to approach smaller swivel angles of ±0.5° and below. This allows the vibrations encountered in the real system to be accurately simulated and analysed.
The tests are carried out at room temperature as standard, but the test bench can optionally be operated at temperatures as low as -20 °C in order to test the performance of lubricants under extreme conditions.
Visual Documentation of Lubricant Degradation Under Vibration Load
The images show races after 1.3 h of grease-lubricated false brinelling load. A damage gradient from 1 to 5 and thus a gradient in the lubricant wear protection can be recognised.
The friction power measurement on the SNR-FEB2 is shown, which can be used as an additional differentiating variable in the test. Due to changes in contact, the power loss in the system increases with the formation of standstill marks in the bearing shell.
