Different materials of flange mount bearing housing

The purpose of flange mount bearing is to reduce rotational friction and support radial and axial loads. The flange mount bearing housing provides a method for securing the bearing while in use, maintains bearing alignment and also protects the bearing during operation. Housings can be made from a variety of materials with different properties. 

Pressed steel. It is a low carbon steel, which has been pressed rather than machined. 

Stainless steel. It has good chemical and corrosion resistance and can have relatively high-pressure ratings.

Acetal polymers. They are semi-crystalline that offer excellent inherent lubricity, fatigue resistance, and chemical resistance. 

Plastic. It includes numerous organic, synthetic, or processed materials that are mostly thermoplastic or thermosetting polymers of high molecular weight and that can be made into objects, films, or filaments. 

Cast iron. It refers to a family of materials whose major constituent is iron, with important trace amounts of carbon and silicon. Cast irons are natural composite materials whose properties are determined by their microstructures - the stable and metastable phases formed during solidification or subsequent heat treatment.