THERMAL SCIENCE

International Scientific Journal

Abdullah Jamil

,

Masri Bin Baharom

,

Tamiru Alemu Lemma

,

Tadimalla Varaha Venkata Lakshmi Narasimha Rao

EXPERIMENTAL INVESTIGATION AND THERMAL ANALYSIS OF COUPLER-ROCKER BALL BEARING

ABSTRACT
Ball bearings are widely used in many machineries and industrial applications. Thermal behaviour of oscillating ball bearings is unknown due to its complex pendulum-like motion and is discussed in this research. In this research, the effect of operating conditions of the oscillating bearing performing coupler-rocker motion on the heat generation is experimentally investigated and verified using mathematical model. For this purpose, a coupler-rocker bearing testing rig was designed and fabricated and the test bearing is splash-lubricated in an oil sump. The loading of test bearing was done using two extension springs. The applied load on the bearing was varied from 0 to 750 N while the crank rpm was varied from 1200 rpm to 1800 rpm. Three lubricant grades were used namely, SAE30, SAE40, and SAE50. Experimental results showed that the temperature of coupler-rocker bearing approaches steady-state at about 12 minutes for all cases. The steady-state temperatures at variable conditions are observed to follow a linear trend.
KEYWORDS
thermal analysis, oscillating bearing, experimental testing, Ball bearing, four-Bar mechanism, coupler-rocker
PAPER SUBMITTED: 2019-01-26
PAPER REVISED: 2019-03-22
PAPER ACCEPTED: 2019-03-25
PUBLISHED ONLINE: 2019-04-07
DOI REFERENCE: https://doi.org/10.2298/TSCI190126111J
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2020, VOLUME 24, ISSUE Issue 6, PAGES [3781 - 3793]
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Experimental investigation and thermal analysis of coupler-rocker ball bearing

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence