Open AccessComparison of vibrations of high-speed bearings driven by flat layer belts
Author(s) -
Zuzana Murčínková
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1117/1/012014
Subject(s) - vibration , bearing (navigation) , aramid , structural engineering , materials science , tension (geology) , rotational speed , textile , slip (aerodynamics) , torsional vibration , composite material , engineering , mechanical engineering , acoustics , physics , aerospace engineering , ultimate tensile strength , fiber , astronomy
The paper presents the results of comparison measuring of absolute vibrations for textile machine driven by flat layered belts with high velocity 50-60 m/s. The dynamic properties of flat belt are important as the flat belt surface is in direct contact with shaft of special textile bearing (115,000-135,000 rpm). Interaction of textile bearing vibration and driven belt may produce significant amplitude and frequency vibration modulation influencing the torsional vibrations and kinematic slip of rolling elements and additional loading of cage. Thus, the bearing life is significantly shortened what is undesirable effect. However, the dynamic properties of driving flat belt are able to influence the vibration of high-speed bearing as it was measured. The two tested flat belts involved one polyester and aramid fabric, respectively, keeping same temperature, belt tension, rotational speed and driven forty bearings. The belt involving the aramid fabric brought the promising results.