Application

Many rolling bearings and other rotationally symmetric steel parts are fitted tightly on the shaft. Especially larger parts can be considerably easier fitted if they are heated prior to mounting (rolling bearings up to a maximum of 120 °C). Induction heating is superior to traditional methods such as heating furnaces, heating plates or oil baths.

The induction heating methods are fast and clean. They are, therefore, particularly suitable for batch mounting. The devices can be used for heating complete bearings, rings of cylindrical roller bearings or needle roller bearings, as well as other rotationally symmetric steel parts such as labyrinth rings, roll couplings, tyres, etc. FAG offers six sizes of induction heating devices which cover a wide range of applications.

Advantages

• fast, energy-saving working
• suitable for rolling bearings and other ring-shaped steel parts
• extremely safe operation
• environmentally compatible, no oil required (no disposal)
• uniform, controlled heating
• simple operation
• automatic demagnetization
• very efficient as the most suitable size can be selected for every application

Basic principle

Basically, the heating device consists of a live coil with an iron core (primary coil) which induces in a short-circuited secondary circuit (rolling bearing or other steel part) a high current at low voltage. The part to be mounted is heated quickly. Non-metallic components and the device itself are not heated.

Safety

The FAG induction heating devices bear the CE symbol. Operating errors or malfunctions are indicated by an acoustic or optical signal. This may happen if the temperature sensor is not correctly attached, if the sensor or the sensor wire is damaged, or if the part to be heated is too heavy for the device. Every induction heating device generates a strong magnetic field. Such a magnetic field can have a negative effect on pacemakers and watches, disks, credit cards and other data carriers as well as electronic circuits in instruments. The safety distance is two meters.

The devices must not be used in a damp environment or in hazardous locations.

Every device comes with detailed operating instructions and safety gloves.