We are the leading manufacturer and supplier of Grease Cups. A grease cup is a fitting which is used to supply lubrication to bearings and other moving parts in an engine. This grease cups is designed to provide a constant and steady supply of lubrication to moving parts, and can be found in a variety of engines and machines. Like other fittings, they need to be maintained with care to keep the overall system operating at optimal capacity, and to avoid maintenance problems.