Cooper Cartridges for split bearings are usually supplied with a general purpose felt seal. Efficient performance and long life of the roller bearing depend to a large Extent upon the Exclusion of foreign matter from the internal bearing surfaces. Grease, serves the dual purpose of lubricating these surfaces and protecting them from corrosion. Thus, the seal must prevent dust, Grit and moisture from entering the bearing and at the same time prevent Grease from escaping. This listing is for a cartrige only.