Traction motor bearings in electric vehicles fail prematurely due to electrical environments created by the usage of power inverters. Current flow through the bearings leads to morphological damage leading to noise generation. It also causes lubricant degradation due to a rise in the contact temperature. To understand the effects of bearing currents, researchers have carried out tests on full bearings and in recent times, using ball-on-disk tribometers. The ball-on-disk configuration offers a few advantages compared to the full bearing tests: simplified procedure to measure contact temperature rise, electrical contact resistance, and friction and failure due to only contact and not due to other components. The lubricant performance was assessed using a custom-made electromechanical ball-on-disk tribometer. The experimental and numerical simulations carried out to predict the temperature rise in ball-on-disk contacts subjected to electromechanical loading will be presented. The contact resistance and temperature rise are measured in the modified tribo-device under static, dynamic, lubricated, and unlubricated conditions. It is found that the contact resistance depends on the magnitude of the current applied and contact conditions. The methodology proposed to predict the temperature rise at the contact is verified with measured temperature rise.