The main function of bearings is to reduce the friction between movement of two parts of the same machine, between moving part and stationary part of the machine or between two machines. The reduced friction ensures less wear and tear of machines parts. Besides this main function, the bearings also have several other advantages such as; Power savings occurs when ball bearings are used. This may be due to ability of ball bearing to reduce friction completely than roll bearings or plain bearings. There may be lot of other factors involved but the use of ball bearings reduce power consumption , provided other things are being equal . The use of oil and lubricants can be expensive for some companies and machines. The use of ball bearings reduces the need for constant oiling and lubrication. Ball bearings NSK Ball bearings in Delhi and use of other bearings eliminate the need to replace the parts of machines. This not only eliminates the labor cost or machine parts cost b