The shape of the bearing seat is square. It is mounted on the side wall of the machine by 4 bolts, etc. Due to the simple structure around the bearing. Easy to install. Therefore, this housing bearing is the most widely used of the flange type. The said housing bearing with cover is equipped with a manufactured cover. Steel or cast iron outside the cast iron housing. The housings are made of steel or cast iron. They are suitable for use in outdoor conveyor belts exposed to rain or dust.