The shape of the bearing seat is circular. The bearing seat mounting surface is equipped with a tube end sleeve, designed to be pre-built on the opposite side in advance, so the actual installation has very little eccentricity and the mounting position can be correctly determined. Four bolts are used for mounting on the side wall of the machine, etc. The mounting surface of the bearing seat with seat is equipped with a cylindrical sleeve structure, which can be embedded in the frame, so that the eccentricity is small and the positioning is accurate during installation, and it is suitable for use on cartridge pulleys. In addition, the closed bearing with cover is suitable for use in dusty places, such as the drive shaft of the mixer.
