Many young engineers may wonder exactly what the difference is between a bearing and a bushing, and 
some may be too embarrassed to ask. In this post, we are going to track down the difference.
Need some more inspiration? Check out these posts from the Advanced EMC Technologies blog:
One of the major design factors in the choice of a polymer bushing is the expected operating PV. The operating PV is the product of the surface speed of the shaft and the specific bearing load, and serves as an empirical tool for comparing the performance of different bearings.
Here are some additional articles on polymer bushings: