TY - JOUR
TI - Experimental investigation and thermal analysis of coupler-rocker ball bearing
AU - Jamil Abdullah
AU - Baharom Masri Bin
AU - Lemma Tamiru Alemu
AU - Rao Tadimalla Varaha Venkata Lakshmi Narasimha
JN - Thermal Science
PY - 2020
VL - 24
IS - 6
SP - 3781
EP - 3793
PT - Article
AB - 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.