P&b chemicals & engineering provides industrial spiral heaters [model pb200] for uniform, convenient and safe heating of bearings. The industrial spiral heaters are ideal for maintenance/light production work and can also be used to heat other components. These spiral heaters find its application as to heat and mount bearings between a bore diameter of 55 mm to 150 mm. They come with two coils, 1 kw for 55 mm dia to 100 mm dia and 1.75 kw for 100 mm dia to 150 mm dia. For this range of bearings, mechanical pressing forces become impracticle and the bearings need to shrink fitted. Because of the thermostat, the heater achieves controlled heating. The end of the heating cycle is signified by both audio alarm and the visual digital temperature indicator. A built-in micro switch ensures that the equipment cannot be kept on without a job. The spiral heaters ensure uniform and controlled heating of bearings unlike the naked flame or oil bath heating, which can be dangerous. Radiation method leaves no change for dust and small particles to enter inside the bearing. The spiral heaters are convenient as they are portable [-15 kg] working on 220 v single-phase.