Bearing Bushing:

• A Bushing, also known as a bush, is an independent plain bearing that is inserted into a housing to provide a bearing surface for rotary applications; this is the most common form of a plain bearing.
• Common designs include solid (sleeve and flanged), split, and clenched bushings.

Difference between bearing Shields and bearing Seals:

• A Bushing is a thin tube or sleeve that allows relative motion by sliding (our type), as compared to rolling.
• Thus, a bushing is a bearing, but a bearing is not necessarily a bushing type.
• A bearing is the general term for something that allows relative motion between two components, surfaces, etc.