Bearing end covers are used to secure bearings, adjust bearing clearance, and withstand axial forces. There are two types of bearing end cover structures: recessed and flanged. Each type is divided into stuffy cover and sheer cover.
The structure of the end cover of the embedded bearing is simple and compact, no fixing screws are required, the outer diameter is small, the weight is light, and the extension shaft size is short. However, it is difficult to assemble and disassemble the end cover and adjust the bearing clearance, the sealing performance is poor, the seat hole is grooved, and the processing is time-consuming. Recessed bearing end caps are mostly used in lightweight and compact applications.
It is convenient to install, disassemble and adjust the bearing clearance of the flanged bearing end cover, and the sealing performance is also good, so it is widely used. However, the disadvantage is that the outer dimension is large, and a set of screws are required to connect.
Since the end caps are mostly cast in cast iron, it is important to consider the casting process