1984/02/15 Caterpillar

Reference: "Induction Bearing Heater Available," Truck Engine News, September 29, 1982, Page 4.

The 6V6996 (110 volts) and 6V7118 (220 volt) Induction Bearing Heaters can be used to heat a wide variety of components to different temperatures. These heaters come equipped with a 110 °C (230°F) temperature detector that automatically shuts off the heater at that temperature. Additional temperature detectors are available from the supplier. These detectors are available in the temperatures that follow.

Illustration 1. 6V6996 or 6V7118 Induction Bearing Heater.

In some applications, such as connecting rod bushing installation, temperatures higher than 170 °C (338°F) are needed. To by-pass the temperature detector in these applications, the detector must not be connected to the part that is to be heated. The part can then be heated but some other method will have to be used to control the temperature to which the part is heated. One method is the use of temperature sticks. See the second reference article. These sticks are used to put a mark on the parts. The mark will melt when the part gets to the desired temperature.

After it has been determined how long it takes to heat a specific part to the desired temperature, a timer can be used with the heater. A timer, that will shut off the heater at a desired time, is also available from the supplier of the heater.

The temperature detectors, and timers are available from:

Three suppliers of temperature sticks are:

Illustration 2. Example of temperature detector.