SKF TIH 030M/110V Small Induction Heater

• Compact lightweight design; just 20.9 kg (46.0 lb) facilitating portability
• 2-step power setting and smaller yokes allow heating smaller bearings safely and at lower power consumption
• Capable of heating a 28 kg (61.7 lb) bearing in just 20 minutes

High Heating Capacity of Up to 40kg Bearing

The SKF small induction heater TIH 030m combines high heating capacity with portability. The compact lightweight design makes the TIH 030m portable. Placing the induction coil outside the heater's housing allows the heating of bearings weighing up to 40 kg (88 lb). The induction heater is equipped with thermal overheating protection to reduce the risk of damage to the induction coil and the electronics. In addition to temperature mode, the TIH 030m is equipped with a time mode for heating components other than bearings. The induction heating system is supplied standard with three yokes.

The SKF TIH 030m induction heater is designed to heat bearings that are mounted with an interference it onto a shaft. The heat causes the bearing to expand, which eliminates the need to use force during installation. A 90 °C (162 °F) temperature difference between the bearing and shaft is generally sufficient to enable installation. At an ambient temperature of 20 °C (68 °F), the bearing must therefore be heated to 110 °C (230 °F).

The operation of the heater is controlled by the internal electronics in either of two modes. The operator can either select the desired temperature of the bearing in TEMP MODE or set the length of time that the bearing will be heated in TIME MODE. The power level can be adjusted to 100% or 50% for slower heating of sensitive workpieces (for example, bearings with C1 or C2 clearance).

A. Induction coil located outside the heater’s housing enables a shorter heating time and lower energy consumption.
B. Foldable bearing support arms allow larger diameter bearings to be heated, and reduce the risk of the bearing toppling during heating.
C. Magnetic temperature probe, combined with a temperature mode pre-set at 110 °C (230 °F), helps prevent bearing overheating.
D. Unique SKF remote control, with operating display and control panel, makes the heater easy and safe to use.
E. Internal yoke storage, for smaller yoke(s), reduces the risk of yoke damage or loss.
F. Integrated carrying handles allow for easy movement of the heater in the workshop.

Intended use

The TIH 030m has been designed to heat rolling bearings. However, other metal workpieces that form a closed circuit can also be heated. Examples of acceptable workpieces include bushings, shrink rings, pulleys, and gears. All bearings that it over the inductive coil and between the vertical supports with the top yoke in place can be heated using the TIH 030m. In addition, smaller bearings can be placed over any of the three standard yokes.

Principle of operation

The TIH 030m generates heat by means of a large electrical current that is magnetically induced in the workpiece by a coil within the heater. The high voltage, low current electricity lowing through the large number of windings in the inductive coil induces low voltage, high current electricity in the workpiece. Because the workpiece has the electrical characteristics of a coil with a single, short-circuited winding, the high current generates heat within the workpiece. Because the heat is generated within the workpiece, all of the heater components remain cool.

Components

The TIH 030m induction heater contains a U-shaped iron core with an inductive coil surrounding one of the vertical supports. A detachable remote control panel is included. The remote control electronics and the internal electronics control the operation of the heater. A removable yoke on the top of the vertical supports allows the workpiece to be placed onto the heater. To accommodate smaller workpieces, two smaller yokes are also provided. A temperature probe is also included with the heater. Heat-resistant gloves are also included.

SKF induction heater range

The comprehensive range of SKF induction heaters is suitable for most bearing heating applications. The chart gives general information on choosing an induction heater for bearing heating applications.*

The SKF m20 concept represents the weight (kg) of the heaviest SKF spherical roller bearing of series 231 which can be heated from 20 to 110 °C (68 to 230 °F) in 20 minutes. This defines the heater’s power output instead of its power consumption. Unlike other bearing heaters, there is a clear indication of how long it takes to heat a bearing, rather than just the maximum bearing weight possible.

*For heating components other than bearings, SKF recommends consideration of a TIH L MB series heater.