Koehler – Tribology – Grease Noise Tester
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. 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.
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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.
Available Models
Technical Specifications
| 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 |
- Model No: K94300
- 400-460V, 50/60 Hz, 3 Phase
Key Features
Grease Noise Tester
- Quantitative evaluation of grease/bearing noise characteristics
- Peak Detection Algorithm for detection of vibration peaks
- Data Acquisition Software package to monitor, record, and evaluate data
- High quality test spindle rotating at 1800 rpm
- Pneumatic loading device for the test bearing
Key Industries
- Aerospace
- Automotive
- Chemical
- Machinery and Manufacturing
- Mining and Minerals
- Oil and Gas
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