Gearbox Noise and Vibration: Influence of Bearing Preload
2008 (English)Report (Other academic)
The influence of bearing preload or endplay on gearbox noise and vibrations was investigated using a test gearbox consisting of a helical gear pair, shafts, tapered roller bearings, and housing. Vibration measurements were carried out at 140 Nm and 400 Nm torque, with 0.15 mm and 0 mm bearing endplay, and 0.15 mm bearing preload. The results show that the bearing endplay or preload influences the gearbox vibrations. For the test gearbox, it seems that in comparison with endplay, bearing preload decreases vibrations at speeds below 2000 rpm and increases vibrations at speeds over 2000 rpm. Finite element simulations show the same tendencies as the measurements. The literature was reviewed in order to find earlier work investigating the influence of bearing properties on gearbox noise.
Place, publisher, year, edition, pages
2008. , 15 p.
Trita-MMK, ISSN 1400-1179 ; 2008:17
IdentifiersURN: urn:nbn:se:kth:diva-9894OAI: oai:DiVA.org:kth-9894DiVA: diva2:139887
QC 201009232009-01-272009-01-272010-09-23Bibliographically approved