Power Level Selection - simatherm IH 025 VOLCANO Manual De Usuario

4.8

Power level selection

When heating bearings with the IH 025 Volcano, it is important that bea-
rings with small internal clearance or slight preload are heated slowly. Slow
heating ensures that the bearing expands slowly, thereby preventing damage
to the bearing. In addition, it is possible that the ferrite cage and seals could
be heated more quickly than the inner-ring, due to their low mass.
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 (little internal clearance) the power must be reduced.
• Max. 20% for small bearings (positioned around the tip of the cone)
• Max. 40% for medium-sized bearings (positioned in the centre of the cone)
• Max. 60% for large bearings (positioned at the bottom of the cone)
The set power output can be reduced by half, if required.
For bearings with a steel cage or with seals, the power must be reduced. The
table below shows what power level to be selected.
Bearing
Deep groove
ball bearings
other bearings
If the bearings are sealed with gaskets on one side only, they must be placed
on the device with the seal facing upwards. In this arrangement, the power
level of 100% can be selected.
© simatec ag
Cage Shield
Steel Steel
Steel Plastic
Steel none
Steel Steel
Brass Steel
Plastic Steel
Steel Plastic
Brass Plastic
Plastic Plastic
Steel none
Brass none
Plastic none
Portable Induction Heater IH 025 VOLCANO
Power max. Temp.
20% 110 °C
20% 100 °C
100% 110 °C
20% 110 °C
20% 110 °C
20% 110 °C
20% 100 °C
20% 100 °C
20% 100 °C
20% 110 °C
100% 110 °C
100% 110 °C
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