Bearings are used to help reduce friction. Metal-upon-metal contact produces large amounts of friction. The friction adds to wear and tear of the metal, producing grinding that slowly degrades the metal. Bearings reduce friction by having the two surfaces roll over each other, reducing the amount of friction produced. They consist of a smooth metal ball or roller that rolls against a smooth inner and outer metal surface. The rollers or balls take the load, allowing the device to spin. http://www.gibearing.com/roller-bearings/

Milling is the manufacturing of metal products using inserts to remove material from a workpiece. The variety of shapes and sizes determines the cutting or removal of these materials from the object. This is why the quality of inserts are as important to the machinery as well as the workpiece. http://www.gehm-carbide.com/cemented-carbide-insert-blanks/milling-insert-blanks/

The building management system (BMS) is an overarching control system that is responsible for the automatic regulation and control of non-GMP facility subsystems, maintaining predefined parameters (or set points) and the control of their functionality. The major aim of the BMS is to guarantee the safety of facility operation, while also monitoring and optimizing the use and efficiency of its supervised subsystems to allow more efficient operation. http://www.dolangeducation.com/building-management-training-system/

Transformer is one of the main asset in the electrical power industry which needs to be maintained for guaranteed uninterrupted power transmission in order to get assured revenue benefits. Transformer oils are important for the functional transformers and are the dielectric substance that helps in maintaining their temperature. Transformer oils are vital for the proper running and functioning of the transformers. http://www.cnoilpurifier.com/transformer-oil-filtration/

Magnetic separation takes advantage of differences in the magnetic properties of minerals. Minerals fall into one of three magnetic properties: ferromagnetic, paramagnetic and diamagnetic. Ferromagnetic minerals are themselves magnetic (i.e., magnetite and pyrrhotite) and can be easily separated from other minerals with a magnet since they will stick to the poles of the magnet. http://www.cnfood-mech.com/grain-selecting-machine/seed-magnetic-separators.html