The Grease Noise Tester evaluates the lubrication integrity of greases, providing a quantitative assessment of the noise characteristics of the grease. The use of clean lubricants is essential for obtaining long bearing life. Many factors affect the degree of cleanliness of greases during normal operation. A clean grease for initial lubrication as well as re-lubrication are essential to ensure machine longevity. In applications where bearing fatigue life is not critical, such as low operating loads, a clean grease is essential to ensure low bearing noise required for many electric motor applications. The Grease Noise Tester measures the specific disturbances caused by the rolling of particulates called vibration peaks and features a proprietary Peak Detection Algorithm that singles out these vibration peaks from the total bearing vibration signal. The number of vibration peaks and their intensity are analyzed to determine a quantitative value for quiet running behavior of the bearing. In addition, the "grease damping ability" can be evaluated for a direct comparison between the running of a dry bearing versus the running of a lubricated bearing. Designed for proper testing while minimizing the risk of outside contamination, the semi-automated tester utilizes computer-controlled grease dosages and peak measurements on a single test bearing of special low noise quality. The operator simply mounts the test bearing and test grease syringe into the tester, programs the test parameters into the computer, and begins the test. The test results can be monitored, recorded, and evaluated with the data acquisition software package.

Spindle System: Hydrodynamic oil spindle

Spindle Speed: 1800 rpm

Air Supply: Pneumatic system, min. 5.5bar dry air

Axial Loading System: Pneumatic, 30 N maximum

400-460 V, 50/60 Hz, 3 Phase

• K94301 Pickup (Velocity) Sensor 
• K94302 Calibration System 
• K94303 Test Bearing

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