Induction Bearing Heater

    The Transformer Company offers a range of light, medium and heavy industrial Induction heaters that are Fast, Safe, Precise and Environmentally Friendly.

    We are committed to our goal of providing a range of quality products that will meet the requirements of industry. We hope that you will take this opportunity to view our current range.
The principle of a induction bearing heater can be compared with a transformer using a primary coil with a large number of windings and a secondary coil with a few windings on a mutual iron core.

Key reasons to heat a bearing:

 

    * Hot mounting for expansion of the bearing bore to overcome the interference fit when mounting a bearing directly on a cylindrical shaft.

    * Safe mounting, e.g., excluding the use of potentially dangerous cold mounting with a press.

    * An alternative to the often inappropriate cold mounting techniques, such as hammering on the outer ring of the bearing.

Safe and efficient

Induction heating is a very efficient and safe manner of heating a bearing. The alternatives are:

Heating in an oven:

While usually a low-cost option after the initial high investment for an oven is made, it is time- and energy-consuming. Overall, the process is inefficient and causes an increase in operating costs.

Heating in an oil bath:

This is a time- and energy-consuming option, with the additional problem of making sure all the heating oil is out of the bearing. Furthermore, if the oil is not clean (very often the case), then the bearing will be contaminated prior to mounting. This is unacceptable because it can lead to premature bearing failure. The process is potentionally dangerous, due to the combination of fire and oil and the potential for oil spills that could make the workplace unsafe. These disadvantages are in addition to the more general considerations of the health and fire risks.

Heating with an open flame:

This is unacceptable as heat absorption and dissipation is highly uneven and can result in geometrical deformation of the bearing. Furthermore, local overheating can create metallurgical composition modification of the bearing, and these defects could lead to premature failure.