Cylindrical hole of bearing with boss round seat (with stop screw) uses bearing UC2 (X) series UCFC2 (X) ordinary product, L3 triple seal product, C, D (FC, FD) with steel plate cover or cast iron cover 1 ) Tapered hole (with fasteners) uses bearing UK2 (X) series UKFC2 (X) ordinary product, L3 triple seal product, C, D (FC, FD) with steel plate cover or cast iron cover 1). A seated bearing combined with a ball bearing for components and a bearing box with a circular seat mounting surface and a boss. When installing the bearing box on the machine body, first insert the boss part into the mounting hole on the machine body, and then use 4 bolts. By inserting the boss portion into the mounting hole on the machine body, the bearing box can be installed in the correct position. Main applications: rotating drums, rotating rollers, applications requiring high installation accuracy, etc. Bearings with cylindrical bores (with stop screws) made of steel plates are light-loaded light-duty round-seat bearings that use a combination of SB2 series SBPF2 light-weight component ball bearings and a bearing box made of stamped steel plate. When installing the bearing box to the machine body, use 3 bolts. Main applications: light conveyors, light load and low speed applications, etc. Bearings with cylindrical bores (with stop screws) made of steel plate diamond housings are light-loaded lightweight bearings with diamond housings, which are light-loaded bearings with a combination of ball bearings for components of the SB2 series SBPFL2 lightweight component and a bearing box made of stamped steel plate. Compared with the steel plate round seat bearing, the installation space is reduced. When installing the bearing box to the machine body, use 2 bolts. Main applications: light conveyors, light load and low speed applications, etc.