In terms of their precision, stability of form, durability and the strength of the components, engine and transmission oil pumps place high demands on the components in the flow area. Gears and rotors but also the adjustment rings are generally constructed from sintered steel on account of the high precision required at simultaneously competitive costs. Depending on the required strength and tribological properties, a number of sintered materials and surface or hardening processes come into question.
SHW has many years of experience in manufacturing sintered parts for the various types of engine oil pumps. These include variable and fixed displacement internal gear and external gear pumps with various types of gears, variable vane pumps and piston pumps.