Demagnetisation; Power Level Selection - SKF TIH 030m Instrucciones De Uso

5.7

Demagnetisation

The workpiece is automatically demagnetised when heating is complete.
Demagnetisation will not occur if the power is interrupted or the main switch is
switched off. To use the TIH 030m for demagnetisation only, select TIME MODE
and set the time to 0.1 minute (6 seconds).
5.8

Power level selection

When heating bearings with an induction heater, most of the heat will be
generated in the inner bearing race. The heat will then be transferred through the
bearing. It is therefore important that bearings with small internal clearance or
slight preload are heated slowly. Slow heating ensures that the bearing expands
evenly, thereby preventing damage to the bearing.
The shape, weight, size, and internal clearances all affect the amount of time
required to heat a bearing. The large variety of bearing types precludes the
possibility of providing a specific power level setting for each type. Instead, the
following guidelines are provided:
• For sensitive bearings (including bearings with C1 or C2 internal clearance) or
bearings with brass cages, do not exceed 50% power.
• When using the small yoke, never exceed 50% power.
SKF TIH 030m 13