RMD-40 bearing heater is widely used in mechanical installation and maintenance departments and mechanical and electrical manufacturing units in metallurgy, mining, petrochemical, electric power, textile, papermaking, shipbuilding and other fields. It has the advantages of intelligent adjustment of output power, automatic heat preservation, automatic extinguishing/manual magnetism, and overcurrent and overheating protection. No open flame, no pollution, environmental protection, and no hidden dangers of accidents are powerful weapons to realize Industry 4.0.