Indian Journal of Science and Technology

Abstract

Objective: To analyze the heat transfer in a ceramic conventional ball bearing and to study the heat dissipation, temperature profile, deformation and thermal stresses occurring in a bearing as a function of rotational speed. Methods/Statistical Analysis: The Finite Element Method (FEM) was used to analyze the heat flow and other parameters in a bearing. Modeling of the system was done using SOLIDWORKS. The analysis was done to study the heat dissipation in the bearing. The model was imported in ANSYS by giving all the parameters. The temperature profile in the bearing was obtained by changing the properties. Structural analysis was performed and the deformation of the bearing at various points were calculated. Findings: It was observed that the temperature of the bearing increases with increase in the heat generation. The effects of temperature for different bearing speeds have been studied and it has been found that the rotational speeds have predominant effect on the temperature. The temperature of the bearing increases with the increase in speed. The maximum temperature is a function of heat generation. With the increase of the rotational speed the displacement increases which causes deformation and stresses. The rotational speed also has more effect on the stiffness. Application/Improvements: Bearing is used to support the shaft. As an improvement the vibration characteristics can be analyzed and simulated.
Keywords: Ball Bearing, Deformation, Finite Element Method (FEM), Temperature Distribution, Thermal Analysis