In the traditional bearing assembly, heating is the most common method,induction heating for bearing assembly is the best method in alignment. Compare to other heating methods, inductive bearing heater has more advantages. The heating time and temperature need more accurate control in the bearing heating process, so we need to design a set of corresponding temperature control system to control. The temperature control system that designed in this paper takes microcontroller 80C51 as its control core. The entire system hardware parts include temperature testing system, amplification system, A/D conversion, SCM, I/O device, control system, etc, with the function including bearing temperature examination and display, heating temperature setting, heating condition display by LED(heating or heated). The temperature control system has advantages including strong handling ability , fast operation, low power consumption, simple and convenient control, wide range measure and high precision.
Keywords：bearing heater ; temperature ; singlechip ; human-machine interface
