Grease Nipples（Page2）

The grease fitting is an inlet for injecting grease into a machine. The injection part has a check valve that pushes the ball inward with a spring. When a grease gun used to pour semi-solid grease by adding a thickener to lubricating oil is connected, pressure is applied and grease is injected into the greasing pipe. There are three types of grease fittings, A-type, B-type, and C-type, depending on the angle of the connection port where the grease gun is connected. There are other types too such as pin type and button head. Nickel plating and stainless steel are used for the material. Nickel plating has excellent corrosion resistance and durability, and stainless steel has excellent heat resistance and strength.