The role of radial bearings: provide radial support, withstand radial loads, support rotor weight and centrifugal force due to rotor mass imbalance, and determine the radial position of the rotor.
Sliding bearing with radial load.
The part that constitutes the shaft supported by the bearing is called the journal. The part that matches the journal is called the bearing bush. The part that is made into the full cylindrical shape is called the part of the shaft set bearing bush. The upper part is called the bearing cap. The lower half is called the bearing housing. The cover and the seat are coupled by a stud, and the joint faces of the two are positioned by a stop or a pin, and spacers of different thicknesses can be placed to adjust the bearing clearance. Most bearings have a joint surface that is horizontal and slanted to accommodate the load direction approaching perpendicular to the joint surface. In order to facilitate the entry of lubricating oil between the friction surfaces, the bearing cover is provided with an oil filling hole, and the bearing bush has an axial oil groove for distributing lubricating oil. The bearing cap and seat are mostly made of cast iron, and the load-bearing steel or steel plate welded structure is used.