TIH030M 230V Bearing Heater 20mm To 300mm Bore Size TIH030M 230V. Heating bearings has never been so convenient, our SKF bearing heater is lightweight and portable- enabling the user to take it wherever they need. The SKF induction heater is equipped with temperature and time controls, allowing the user to have complete control over the application. The bearing heater uses a special method of heating that is based on high-frequency induction, which in turn provides optimised efficiency.