In Hermetic Sealed Compressor, the compressor and the motor are enclosed in the welded steel casing and the two are connected through a common shaft. With this streamlined process, the whole compressor and the motor becomes a single compact and portable system which can be easily handled. The hermetically sealed compressor are quite different from the conventional open kind of compressors wherein the compressor and the motor are different entities and the compressor is connected to the motor by coupling or belt. In addition to this, one of the most popular kinds of the Hermetic Sealed Compressors are the reciprocating compressors. These compressors were the first to be used as the hermetically sealed compressors and are still being used widely.