Proper bearing installation is essential to safeguard maximum bearing life. Maintenance experts estimate that 27% of bearing failures can be attributed to improper installation and mounting errors. A bearing that is only a few thousandths of an inch out of alignment can have its lifespan cut in half. By heating the inner race to ~250°F prior to installation, the user allows the bearing to expand and slide easily onto the shaft. Magnetic induction is a safe and efficient method of generating heat to expand bearings for installation. No open flame or hot oil to worry about. Keep your Bessey Magnetic induction heater working by replacing any lost or damaged magnetic probe with this original eqipment replacement. BESSEY. Simply better.