A Heat Convertor shaft is made available by us for use in the various commercial and industrial applications. The shaft cooler is a small fan that clamps on the shaft between the fan housing and the inboard bearing. The convective heat transfer from the open surface of the rotating shaft in a high-temperature furnace fan to the surroundings is studied experimentally at different fan speeds. The offered Heat Convertor shaft is made available by us for use in the various places as per the need.