DEPENDENCY OF BEARING NOISE PROPERTIES ON SURFACES LUBRICATION

Abstract

This paper presents the investigation on bearing noise and vibration characteristics, when they are made from different material and lubricated with different materials. Experimentals research was performed on special workbenches, where ceramic and steel ball bearings were tested with equal loads and rotational speed. Parameters of their vibrations and acoustic noise were measured and dependencies of noise or vibration frequency lubricating material were found. There was found the decrease of resulting frequencies when thick oil was used. Hypothesis of tribological nature of the effect was raised and verified.

Decrease of resulting frequencies in vibration spectrum of about 2 kHz when thicker lubricant was used proves initial prescriptions. Noise of ceramic bearing without lubrication and with similar surface parameters and testing conditions is generated in higher frequencies and high noise intensities are observed up to 20 kHz.

http://dx.doi.org/10.5755/j01.mech.17.4.566