Introduction; Principle Of Operation - SKF TIH 240 Instrucciones De Uso

«БЕРГ АБ», (495) 727-22-72, promshop-biz@ya.ru, www.promshop

1. Introduction

The SKF induction heater TIH 240 is intended for heating large size
rolling bearings. Other metal components forming a closed circuit such
as gear wheels, housings, bushings, shrink rings and pulleys can also
be heated.
The TIH 240 has a maximum capacity of 24 kVA and can be used for
bearings up to 700 kg but depends on type of component, its geometry
and the required temperature. Limits for solid components like gear
wheels is restricted to somewhere around 300 kg.
At the end of the heating cycle the workpiece is automatically
demagnetized.
The apparatus can also be used as a demagnetizer only.

1.1 Principle of operation

An induction heater can be compared with a transformer using the
principle of a primary coil with a large number of windings, and a
secondary coil with a few windings, on a mutual iron core. The
input/output voltage ratio is equal to the ratio of windings, while the
energy remains the same. Consequently, the secondary coil will provide
a low voltage at a high amperage.
In the case of the SKF induction heater, the bearing is a short circuited,
single-turn, secundary coil through which a low A.C. voltage flows at
high amperage, thus generating a lot of heat. The heater itself as well as
the yoke remain at ambient temperature.
«БЕРГ АБ», (495) 727-22-72, promshop-biz@ya.ru, www.promshop
SKF TIH 240 5